Statewide opinion polling for the 2012 United States presidential election
This article provides a collection of statewide public opinion polls that were conducted relating to the 2012 United States presidential election, which was won by incumbent President Barack Obama. The polls show the status between Republican nominee Mitt Romney and President Obama. Also included are three- and four-way race polls with the Republican and Democratic nominees against various third party candidates.
Opinion polling: Obama vs Romney
Sample size key:LV – Likely Voters
RV – Registered Voters.
Poll source key
– Source polls normally for Republicans
– Source polls normally for Democrats
[Alabama]
9 electoral votes62%–38%
60%–38%
[Alaska]
3 electoral votes61%–35%
59%–37%
No polls conducted
[Arizona]
11 electoral votes55%–44%
53%–45%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 2–3, 2012 | Barack Obama | 46% | Mitt Romney | 53% | 7 | 1,080 LV | ±3% | |
| October 31 – November 3, 2012 | Barack Obama | 44% | Mitt Romney | 52% | 8 | 702 LV | ±4.1% | |
| October 21, 2012 | Barack Obama | 44% | Mitt Romney | 52% | 8 | 500 LV | ±4.5% | |
| October 4–11, 2012 | Barack Obama | 43% | Mitt Romney | 52% | 9 | 469 LV | ±5.4% | |
| October 4–10, 2012 | Barack Obama | 44% | Mitt Romney | 42% | 2 | 523 LV | ±4.4% | |
| October 1–3, 2012 | Barack Obama | 44% | Mitt Romney | 53% | 9 | 595 LV | ±4.0% | |
| September 25–26, 2012 | Barack Obama | 42% | Mitt Romney | 46% | 4 | 500 LV | ±4.0% | |
| September 25, 2012 | Barack Obama | 42% | Mitt Romney | 52% | 10 | 500 LV | ±4.5% | |
| September 15–19, 2012 | Barack Obama | 45% | Mitt Romney | 48% | 3 | 600 LV | ±4.0% | |
| September 7–14, 2012 | Barack Obama | 41% | Mitt Romney | 51% | 10 | 628 LV | ±% | |
| September 7–9, 2012 | Barack Obama | 44% | Mitt Romney | 53% | 9 | 993 | ±3.1% |
[Arkansas]
6 electoral votes54%–45%
59%–39%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 9–14, 2012 | Barack Obama | 31% | Mitt Romney | 58% | 27 | 642 LV | ±4.0% | |
| September 17, 2012 | Barack Obama | 35% | Mitt Romney | 56% | 21 | 2.228 LV | ±2.0% |
[California]
55 electoral votes54%–45%
61%–37%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 55% | Mitt Romney | 40% | 15 | 1,575 LV | ±--% | |
| October 17–30, 2012 | Barack Obama | 54% | Mitt Romney | 39% | 15 | 1,566 LV | ±2.6% | |
| October 21–28, 2012 | Barack Obama | 56% | Mitt Romney | 33% | 23 | 2,115 LV | ±3% | |
| October 15–21, 2012 | Barack Obama | 55% | Mitt Romney | 38% | 17 | 1,504 RV | ±--% | |
| October 14–21, 2012 | Barack Obama | 53% | Mitt Romney | 41% | 12 | 993 LV | ±4.0% | |
| October 11–15, 2012 | Barack Obama | 53% | Mitt Romney | 38% | 15 | 508 LV | ±5.1% | |
| October 7–10, 2012 | Barack Obama | 54% | Mitt Romney | 33% | 21 | 830 LV | ±3.4% | |
| October 7–9, 2012 | Barack Obama | 53% | Mitt Romney | 39% | 14 | 539 LV | ±4.3% | |
| September 5 – 17, 2012 | Barack Obama | 58% | Mitt Romney | 34% | 24 | 1,171 RV | ±3.4% | |
| September 9 – 16, 2012 | Barack Obama | 53% | Mitt Romney | 39% | 14 | 995 LV | ±4.4% | |
| September 7 – 14, 2012 | Barack Obama | 56% | Mitt Romney | 39% | 17 | 1,361 LV | ±--% | |
| September 9–12, 2012 | Barack Obama | 55% | Mitt Romney | 33% | 22 | 802LV | ±3.5% | |
| September 9–11, 2012 | Barack Obama | 57% | Mitt Romney | 35% | 22 | 524LV | ±4.3% |
[Colorado]
9 electoral votes52%–47%
54%–45%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 3–5, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 774 LV | ±4% | |
| November 3–4, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 1,096 LV | ±3% | |
| November 2–4, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 603 LV | ±4% | |
| November 2–4, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 676 LV | ±4.3% | |
| November 1–3, 2012 | Barack Obama | 45% | Mitt Romney | 47% | 2 | 973 LV | ±3.6% | |
| October 31 – November 3, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 752 LV | ±4.1% | |
| October 31 – November 2, 2012 | Barack Obama | 46% | Mitt Romney | 46% | Tied | 1,052 LV | ±3.4% | |
| October 31 – November 1, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 825 LV | ±-% | |
| October 30 – November 1, 2012 | Barack Obama | 46% | Mitt Romney | 47% | 1 | 694 LV | ±4.2% | |
| October 28–31, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 695 LV | ±3.8% | |
| October 26–31, 2012 | Barack Obama | 50% | Mitt Romney | 48% | 2 | 764 LV | ±3.5% | |
| October 29–31, 2012 | Barack Obama | 45% | Mitt Romney | 46% | 1 | 744 LV | ±4.1% | |
| October 30, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 1,246 LV | ±2.9% | |
| October 29, 2012 | Barack Obama | 47% | Mitt Romney | 50% | 3 | 500 LV | ±4.5% | |
| October 28–29, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 500 LV | ±4.4% | |
| October 25–28, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 600 LV | ±4.0% | |
| October 23–25, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 904 LV | ±3.3% | |
| October 23–25, 2012 | Barack Obama | 47% | Mitt Romney | 46% | 1 | 600 LV | ±4.0% | |
| October 23–24, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 502 LV | ±4.4% | |
| October 23–24, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 1,128 LV | ±2.9% | |
| October 23–24, 2012 | Barack Obama | 46% | Mitt Romney | 43% | 3 | 500 LV | ±4.4% | |
| October 16–18, 2012 | Barack Obama | 46% | Mitt Romney | 50% | 4 | 500 LV | ±4.0% | |
| October 16–18, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 500 LV | ±4.0% | |
| October 15–16, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 500 LV | ±4.4% | |
| October 15, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 1,206 LV | ±2.9% | |
| October 5–11, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 2,089 LV | ±2.2% | |
| October 9–10, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 614 LV | ±4.0% | |
| October 4–9, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 1,254 LV | ±3.0% | |
| October 5–8, 2012 | Barack Obama | 46% | Mitt Romney | 50% | 4 | 600 LV | ±4.0% | |
| October 7, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 500 LV | ±4.5% | |
| October 4–5, 2012 | Barack Obama | 47% | Mitt Romney | 43% | 4 | 604 LV | ±4.0% | |
| September 30 – October 2, 2012 | Barack Obama | 46% | Mitt Romney | 50% | 4 | 300 LV | ±5.7% | |
| September 25 – 27, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,273 LV | ±2.8% | |
| September 20–23, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 940 LV | ±3.2% | |
| September 15 – 19, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 600 LV | ±4.0% | |
| September 16–18, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 971 LV | ±3.1% | |
| September 17, 2012 | Barack Obama | 45% | Mitt Romney | 47% | 2 | 500 LV | ±4.5% | |
| September 11–17, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 1,497 LV | ±2.5% | |
| September 10–12, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 600 LV | ±4.0% | |
| September 10–11, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 503 LV | ±4.4% | |
| August 31 – September 2, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,001 LV | ±3.1% |
Three way race
| Poll source | Date | Democratic | % | Republican | % | Libertarian | % | Lead margin | Sample Size | Margin of error |
| September 20–23, 2012 | Barack Obama | 49% | Mitt Romney | 43% | Gary Johnson | 4% | 6 | 740 | ±3.2% |
[Connecticut]
7 electoral votes54%–44%
61%–38%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 54% | Mitt Romney | 39% | 15 | 895 LV | ±3.6% | |
| November 1 – 2, 2012 | Barack Obama | 55% | Mitt Romney | 42% | 13 | 1,220 LV | ±2.8% | |
| October 19–22, 2012 | Barack Obama | 55% | Mitt Romney | 41% | 14 | 1,412 LV | ±2.6% | |
| October 21, 2012 | Barack Obama | 52% | Mitt Romney | 45% | 7 | 500 LV | ±4.5% | |
| October 19–21, 2012 | Barack Obama | 53% | Mitt Romney | 40% | 13 | 575 LV | ±4.2% | |
| October 15–16, 2012 | Barack Obama | 53% | Mitt Romney | 44% | 9 | 1,015 LV | ±3.1% | |
| October 11–16, 2012 | Barack Obama | 51% | Mitt Romney | 37% | 14 | 574 LV | ±4.0% | |
| October 4–14, 2012 | Barack Obama | 53% | Mitt Romney | 38% | 15 | 552 LV | ±4.2% | |
| October 4–11, 2012 | Barack Obama | 53% | Mitt Romney | 39% | 14 | 434 LV | ±5.5% | |
| October 7, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 500 LV | ±4.5% | |
| September 28 – October 2, 2012 | Barack Obama | 54% | Mitt Romney | 42% | 12 | 1,696 LV | ±2.4% | |
| September 24 – 26, 2012 | Barack Obama | 54% | Mitt Romney | 41% | 13 | 801 LV | ±3.5% | |
| September 11 – 16, 2012 | Barack Obama | 53% | Mitt Romney | 32% | 21 | 508 LV | ±4.4% | |
| September 7 – 14, 2012 | Barack Obama | 53% | Mitt Romney | 40% | 13 | 634 LV | ±--% |
[Delaware]
3 electoral votes53%–46%
62%–37%
No polls conducted
District of Columbia
3 electoral votes89%–9%
92%–7%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 12–14, 2012 | Barack Obama | 88% | Mitt Romney | 8% | 80 | 1,222 LV | ±2.8% |
[Florida]
29 electoral votes52%–47%
51%–48%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 4–5, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 1,060 LV | ±3.1% | |
| November 3–5, 2012 | Barack Obama | 47.8% | Mitt Romney | 47.7% | 0.1 | 876 LV | ±3.5% | |
| November 3–5, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 769 LV | ±4% | |
| November 3–5, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 1,197 RV | ±3.2% | |
| November 4, 2012 | Barack Obama | 47% | Mitt Romney | 52% | 5 | 437 LV | ±4.5% | |
| November 3–4, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 955 LV | ±3.2% | |
| November 2–4, 2012 | Barack Obama | 50.4% | Mitt Romney | 45.2% | 5.2 | 826 LV | ±3.5% | |
| November 2–4, 2012 | Barack Obama | 46% | Mitt Romney | 46% | Tied | 743 LV | ±4.1% | |
| November 2–4, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 1,107 RV | ±3.4% | |
| November 1–3, 2012 | Barack Obama | 46.9% | Mitt Romney | 49.2% | 2.3 | 823 LV | ±3.5% | |
| November 1–3, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 525 LV | ±4.3% | |
| November 1–3, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 946 LV | ±3.6% | |
| November 1–3, 2012 | Barack Obama | 46% | Mitt Romney | 42% | 4 | 1,257 RV | ±3.2% | |
| October 31 – November 3, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 1,621 LV | ±3% | |
| October 31 – November 2, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 985 LV | ±3.6% | |
| October 30 – November 2, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 800 LV | ±3.4% | |
| October 30 – November 1, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 1,545 LV | ±2.5% | |
| October 30 – November 1, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 897 LV | ±3.7% | |
| October 30 – November 1, 2012 | Barack Obama | 45% | Mitt Romney | 51% | 6 | 800 LV | ±3.5% | |
| October 29–31, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 716 LV | ±4.2% | |
| October 29–31, 2012 | Barack Obama | 45% | Mitt Romney | 44% | 1 | 963 RV | ±4% | |
| October 30, 2012 | Barack Obama | 48.9% | Mitt Romney | 49.8% | 0.9 | 1,146 LV | ±3% | |
| October 30, 2012 | Barack Obama | 47% | Mitt Romney | 50% | 3 | 549 LV | ±4.2% | |
| October 28–30, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 825 LV | ±3.5% | |
| October 29, 2012 | Barack Obama | 48% | Mitt Romney | 50% | 2 | 1,000 LV | ±3% | |
| October 28–29, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 600 LV | ±4% | |
| October 27–29, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 828 LV | ±3.5% | |
| October 26–28, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 827 LV | ±3.5% | |
| October 26–28, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 687 LV | ±3.7% | |
| October 25–28, 2012 | Barack Obama | 49% | Mitt Romney | 50% | 1 | 770 LV | ±3.5% | |
| October 25–28, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 914 RV | ±3% | |
| October 23–28, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 1,073 LV | ±3% | |
| October 25–27, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 595 LV/AV | ±4.1% | |
| October 24–27, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 800 LV | ±3.4% | |
| October 25, 2012 | Barack Obama | 48% | Mitt Romney | 50% | 2 | 750 LV | ±4.0% | |
| October 24, 2012 | Barack Obama | 49% | Mitt Romney | 50% | 1 | 1,182 LV | ±2.8% | |
| October 23–24, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 600 LV | ±4.0% | |
| October 22–24, 2012 | Barack Obama | 46% | Mitt Romney | 51% | 5 | 1,001 LV | ±3.1% | |
| October 19–21, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 759 LV | ±3.56% | |
| October 18–21, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 800 LV | ±3.4% | |
| October 18–20, 2012 | Barack Obama | 46% | Mitt Romney | 51% | 5 | 502 LV | ±4.5% | |
| October 18, 2012 | Barack Obama | 46% | Mitt Romney | 51% | 5 | 750 LV | ±4.0% | |
| October 17–18, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 681 LV | ±4.0% | |
| October 15–17, 2012 | Barack Obama | 47% | Mitt Romney | 43% | 4 | 841 LV | ±--% | |
| October 14–16, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 828 LV | ±n/a | |
| October 12–14, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 791 LV | ±3.4% | |
| October 11, 2012 | Barack Obama | 47% | Mitt Romney | 51% | 4 | 750 LV | ±4.0% | |
| October 8–11, 2012 | Barack Obama | 46% | Mitt Romney | 49% | 3 | 600 LV | ±4.0% | |
| October 8–10, 2012 | Barack Obama | 44% | Mitt Romney | 51% | 7 | 800 LV | ±3.5% | |
| October 7–9, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 988 | ±3.1% | |
| October 1–9, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 790 | ±3.5% | |
| October 4, 2012 | Barack Obama | 46% | Mitt Romney | 49% | 3 | 1,200 LV | ±3.0% | |
| October 4, 2012 | Barack Obama | 47% | Mitt Romney | 49% | 2 | 500 LV | ±4.0% | |
| September 29 – 30, 2012 | Barack Obama | 47% | Mitt Romney | 46% | 1 | 1,191 LV | ±3.3% | |
| September 29 – 30, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 914 LV | ±3.4% | |
| September 24, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 540 LV | ±4.0% | |
| September 18 – 24, 2012 | Barack Obama | 53% | Mitt Romney | 44% | 9 | 1,196 LV | ±3.0% | |
| September 19–23, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 769 LV | ±4.5% | |
| September 20–23, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 861 LV | ±3.3% | |
| September 20–22, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 600 LV | ±4% | |
| September 17–19, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 800 LV | ±3.5% | |
| September 15 – 19, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 600 LV | ±4.0% | |
| September 18, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,230 LV | ±2.82% | |
| September 16–18, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 829 LV | ±3.0% | |
| September 15–16, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 1,728 LV | ±2.5% | |
| September 12, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 500 LV | ±4.5% | |
| September 9–11, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 980 LV | ±3.1% | |
| September 9–10, 2012 | Barack Obama | 47% | Mitt Romney | 50% | 3 | 600 LV | ±4.0% | |
| September 7–9, 2012 | Barack Obama | 48% | Mitt Romney | 44% | 4 | 596 LV | ±4.1% | |
| September 2, 2012 | Barack Obama | 46.7% | Mitt Romney | 48% | 1.3 | 1,288 LV | ±2.7% | |
| August 31 – September 2, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 1,548 LV | ±2.5% |
Georgia">Georgia (U.S. state)">Georgia
16 electoral votes58%–41%
52%–47%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 44% | Mitt Romney | 52% | 8 | 1,070 LV | ±3.5% | |
| October 29–31, 2012 | Barack Obama | 46% | Mitt Romney | 52% | 6 | 1,316 LV | ±2.7% | |
| October 25–28, 2012 | Barack Obama | 44% | Mitt Romney | 52% | 8 | 574 LV | ±4.2% | |
| October 8–11, 2012 | Barack Obama | 43% | Mitt Romney | 51% | 8 | 706 LV | ±5.0% | |
| September 18, 2012 | Barack Obama | 35% | Mitt Romney | 56% | 21 | 483 LV | ±4.5% | |
| September 7 – 14, 2012 | Barack Obama | 44% | Mitt Romney | 51% | 7 | 1,020 LV | ±--% |
[Hawaii]
4 electoral votes54%–45%
72%–27%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 24–26, 2012 | Barack Obama | 61% | Mitt Romney | 34% | 27 | 1,218 | ±2.8% | |
| September 26–28, 2012 | Barack Obama | 62% | Mitt Romney | 30% | 32 | 1,648 | ±2.4% |
[Idaho]
4 electoral votes68%–30%
61%–36%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 8–10, 2012 | Barack Obama | 27% | Mitt Romney | 63% | 36 | 625 LV | ±4% |
[Illinois]
20 electoral votes55%–45%
62%–37%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 57% | Mitt Romney | 38% | 19 | 1,126 LV | ±3.3% | |
| October 30, 2012 | Barack Obama | 57% | Mitt Romney | 41% | 16 | 1,198 LV | ±2.95% | |
| October 4–11, 2012 | Barack Obama | 58% | Mitt Romney | 38% | 20 | 850 LV | ±3.9% | |
| October 4–8, 2012 | Barack Obama | 55% | Mitt Romney | 36% | 19 | 700 RV | ±3.7% | |
| September 7–14, 2012 | Barack Obama | 59% | Mitt Romney | 36% | 23 | 1,086 | ±--% | |
| September 5, 2012 | Barack Obama | 54% | Mitt Romney | 37% | 17 | 1,382 | ±2.8% |
[Indiana]
11 electoral votes60%–39%
50%–49%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 44% | Mitt Romney | 51% | 7 | 768 LV | ±4.1% | |
| November 1, 2012 | Barack Obama | 43% | Mitt Romney | 52% | 9 | 600 LV | ±4.0% | |
| October 28–30, 2012 | Barack Obama | 41% | Mitt Romney | 51% | 10 | 800 LV | ±3.5% | |
| October 26–28, 2012 | Barack Obama | 42% | Mitt Romney | 55% | 13 | 753 LV | ±3.5% | |
| October 24–25, 2012 | Barack Obama | 41% | Mitt Romney | 55% | 14 | 600 LV | ±4.0% | |
| October 10–11, 2012 | Barack Obama | 41% | Mitt Romney | 54% | 13 | 600 LV | ±4.0% | |
| September 19–23, 2012 | Barack Obama | 40% | Mitt Romney | 52% | 12 | 800 LV | ±3.5% | |
| September 7–14, 2012 | Barack Obama | 45% | Mitt Romney | 50% | 5 | 628 | ±4.0% |
[Iowa]
6 electoral votes50%–49%
54%–44%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 3–4, 2012 | Barack Obama | 50% | Mitt Romney | 48% | 2 | 1,122 LV | ±2.9% | |
| November 2–4, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 600 LV | ±4% | |
| October 31 – November 3, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 1,040 LV | ±3.5% | |
| November 1–2, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 500 LV | ±4.4% | |
| October 30 – November 2, 2012 | Barack Obama | 47% | Mitt Romney | 42% | 5 | 800 LV | ±3.5% | |
| November 1, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 594 LV | ±4.0% | |
| October 30 – November 1, 2012 | Barack Obama | 46% | Mitt Romney | 44% | 2 | 600 LV | ±4.0% | |
| October 30, 2012 | Barack Obama | 48.8% | Mitt Romney | 47.3% | 1.5 | 1,174 LV | ±3% | |
| October 30, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 750 LV | ±4% | |
| October 29–30, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 676 LV | ±3.8% | |
| October 28–29, 2012 | Barack Obama | 50% | Mitt Romney | 44% | 6 | 1,142 LV | ±3% | |
| October 18–27, 2012 | Barack Obama | 44.4% | Mitt Romney | 45.2% | 0.8 | 320 LV | ±5.6% | |
| October 24, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 517 LV | ±4.3% | |
| October 23–24, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 690 LV | ±3.7% | |
| October 21, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 500 LV | ±4.5% | |
| October 18–19, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 660 LV | ±3.8% | |
| October 17–19, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 869 LV | ±3.3% | |
| October 15–17, 2012 | Barack Obama | 51% | Mitt Romney | 43% | 8 | 1,137 LV | ±2.9% | |
| October 15, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,499 LV | ±2.6% | |
| October 11–14, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 600 LV | ±4.0% | |
| October 7, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 500 LV | ±4.5% | |
| September 25–27, 2012 | Barack Obama | 48% | Mitt Romney | 44% | 4 | 1,064 LV | ±3.1% | |
| September 24–26, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 754 LV | ±3.6% | |
| September 20 – 23, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 600 LV | ±4.0% | |
| September 19, 2012 | Barack Obama | 44% | Mitt Romney | 47% | 3 | 500 LV | ±4.5% | |
| September 16–18, 2012 | Barack Obama | 50% | Mitt Romney | 42% | 8 | 898 LV | ±3.3% |
[Kansas]
6 electoral votes62%–37%
57%–42%
[Kentucky]
8 electoral votes60%–40%
57%–41%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| September 11–13, 2012 | Barack Obama | 39% | Mitt Romney | 53% | 14 | 606 LV | ±4.1% |
[Louisiana]
8 electoral votes57%–42%
59%–40%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 2 – 4, 2012 | Barack Obama | 36.2% | Mitt Romney | 58.8% | 22.6 | 2,682 LV | ±1.9% | |
| September 5 – 7, 2012 | Barack Obama | 37% | Mitt Romney | 53% | 16 | 602 LV | ±4.0% |
[Maine]
4 electoral votes53%–45%
58%–40%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 1–3, 2012 | Barack Obama | 53.3% | Mitt Romney | 42.2% | 11.1 | 905 LV | ±3.26% | |
| November 1–2, 2012 | Barack Obama | 55% | Mitt Romney | 42% | 13 | 1,633 LV | ±2.4% | |
| October 30–31, 2012 | Barack Obama | 49% | Mitt Romney | 42% | 7 | 613 LV | ±4% | |
| September 24–28, 2012 | Barack Obama | 50.8% | Mitt Romney | 36.8% | 14 | 400 LV | ±4.9% | |
| September 25, 2012 | Barack Obama | 52% | Mitt Romney | 40% | 12 | 500 LV | ±4.5% | |
| September 17–18, 2012 | Barack Obama | 55% | Mitt Romney | 39% | 16 | 804 LV | ±3.5% |
[Maryland]
10 electoral votes56%–43%
61%–38%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 59% | Mitt Romney | 37% | 22 | 705 LV | ±4.1% | |
| October 20 – 23, 2012 | Barack Obama | 55% | Mitt Romney | 36% | 19 | 801 LV | ±3.5% | |
| October 11 – 15, 2012 | Barack Obama | 60% | Mitt Romney | 36% | 24 | 843 LV | ±4.0% | |
| October 4 – 11, 2012 | Barack Obama | 58% | Mitt Romney | 37% | 21 | 498 LV | ±5.2% | |
| September 17–23, 2012 | Barack Obama | 55% | Mitt Romney | 36% | 19 | 813 | ±3.5% |
[Massachusetts]
11 electoral votes62%–37%
62%–36%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 57% | Mitt Romney | 37% | 20 | 800 LV | ±4.1% | |
| October 31 – November 3, 2012 | Barack Obama | 57% | Mitt Romney | 37% | 20 | 811 LV | ±3.6% | |
| November 1 – 2, 2012 | Barack Obama | 57% | Mitt Romney | 42% | 15 | 1,089 LV | ±3% | |
| October 26 – November 1, 2012 | Barack Obama | 58% | Mitt Romney | 40% | 18 | 535 LV | ±4% | |
| October 25 – 28, 2012 | Barack Obama | 63% | Mitt Romney | 31% | 32 | 600 LV | ±4.0% | |
| October 24 – 28, 2012 | Barack Obama | 52% | Mitt Romney | 38% | 14 | 583 LV | ±4.1% | |
| October 25, 2012 | Barack Obama | 59% | Mitt Romney | 40% | 19 | 500 LV | ±4.5% | |
| October 21 – 22, 2012 | Barack Obama | 56% | Mitt Romney | 36% | 20 | 516 LV | ±4.4% | |
| October 18 – 21, 2012 | Barack Obama | 55% | Mitt Romney | 39% | 16 | 761 LV | ±3.48% | |
| October 15 – 16, 2012 | Barack Obama | 57% | Mitt Romney | 39% | 18 | 709 LV | ±3.7% | |
| October 10, 2012 | Barack Obama | 57% | Mitt Romney | 42% | 15 | 500 LV | ±4.5% | |
| October 9 – 10, 2012 | Barack Obama | 55% | Mitt Romney | 41% | 14 | 1,051 LV | ±3.0% | |
| October 2 – 8, 2012 | Barack Obama | 55% | Mitt Romney | 34% | 21 | 437 LV | ±5.4% | |
| October 5 – 7, 2012 | Barack Obama | 52% | Mitt Romney | 36% | 16 | 501 LV | ±4.4% | |
| September 28 – October 4, 2012 | Barack Obama | 63% | Mitt Romney | 33% | 30 | 516 RV | ±4.3% | |
| September 26 – 28, 2012 | Barack Obama | 60% | Mitt Romney | 32% | 28 | 504 LV | ±4.4% | |
| September 21 – 27, 2012 | Barack Obama | 57% | Mitt Romney | 30% | 27 | 502 LV | ±4.4% | |
| September 24, 2012 | Barack Obama | 55% | Mitt Romney | 40% | 15 | 500 LV | ±4.5% | |
| September 13 – 17, 2012 | Barack Obama | 60% | Mitt Romney | 36% | 24 | 497 LV | ±5.5% | |
| September 13 – 16, 2012 | Barack Obama | 57% | Mitt Romney | 39% | 18 | 876 LV | ±3.3% | |
| September 13 – 16, 2012 | Barack Obama | 64% | Mitt Romney | 31% | 33 | 600 LV | ±4.0% | |
| September 6 – 13, 2012 | Barack Obama | 60% | Mitt Romney | 38% | 22 | 444 LV | ±4.6% | |
| September 7 – 9, 2012 | Barack Obama | 56% | Mitt Romney | 40% | 16 | 756 LV | ±3.5% |
[Michigan]
16 electoral votes51%–48%
57%–41%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 4, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 1,305 LV | ±2.7% | |
| November 1 – 3, 2012 | Barack Obama | 52% | Mitt Romney | 47% | 5 | 502 LV | ±4.4% | |
| November 1 – 3, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 700 LV | ±3.7% | |
| October 31 – November 3, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 1,091 LV | ±3.3% | |
| November 2, 2012 | Barack Obama | 46.24% | Mitt Romney | 46.86% | 0.62 | 1,913 LV | ±2.24% | |
| November 1, 2012 | Barack Obama | 52% | Mitt Romney | 47% | 5 | 750 LV | ±4% | |
| October 31 – November 1, 2012 | Barack Obama | 48% | Mitt Romney | 41% | 7 | 500 LV | ±4.4% | |
| October 31 – November 1, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 500 LV | ±4.4% | |
| October 30–31, 2012 | Barack Obama | 53% | Mitt Romney | 45% | 8 | 500 LV | ±4.4% | |
| October 27–29, 2012 | Barack Obama | 47.7% | Mitt Romney | 45% | 2.7 | 600 LV | ±4% | |
| October 26–29, 2012 | Barack Obama | 48% | Mitt Romney | 42% | 6 | 600 LV | ±4% | |
| October 22–23, 2012 | Barack Obama | 46.92% | Mitt Romney | 46.56% | 0.36 | 1,122 LV | ±2.9% | |
| October 18–20, 2012 | Barack Obama | 52% | Mitt Romney | 43% | 9 | 551 LV | ±4.2% | |
| October 17, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 800 LV | ±3.5% | |
| October 11, 2012 | Barack Obama | 52% | Mitt Romney | 45% | 7 | 500 LV | ±4.5% | |
| October 6 – 8, 2012 | Barack Obama | 49% | Mitt Romney | 42% | 7 | 600 LV | ±4.0% | |
| October 5 – 8, 2012 | Barack Obama | 46% | Mitt Romney | 44% | 2 | 1,122 LV | ±3.2% | |
| October 4 – 6, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 600 LV | ±4.0% | |
| October 5, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,122 LV | ±2.93% | |
| September 25 – 27, 2012 | Barack Obama | 52% | Mitt Romney | 40% | 12 | 1,064 LV | ±3.1% | |
| September 21 – 22, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 804 LV | ±3.3% | |
| September 20, 2012 | Barack Obama | 54% | Mitt Romney | 42% | 12 | 500 LV | ±4.5% | |
| September 14–18, 2012 | Barack Obama | 52% | Mitt Romney | 44% | 8 | 754 LV | ±3.5% | |
| September 15–17, 2012 | Barack Obama | 52% | Mitt Romney | 38% | 14 | 600 LV | ±4% | |
| September 10–14, 2012 | Barack Obama | 48% | Mitt Romney | 42% | 6 | 600 LV | ±4.0% | |
| September 12, 2012 | Barack Obama | 45% | Mitt Romney | 44% | 1 | 1,156 LV | ±2.88% | |
| September 8–10, 2012 | Barack Obama | 47% | Mitt Romney | 37% | 10 | 600 LV | ±4.0% | |
| August 31 – September 2, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 815 LV | ±3.4% |
[Minnesota]
10 electoral votes51%–48%
54%–44%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 2–3, 2012 | Barack Obama | 53% | Mitt Romney | 45% | 8 | 1,164 LV | ±2.9% | |
| November 1–3, 2012 | Barack Obama | 52% | Mitt Romney | 41% | 11 | 556 LV | ±4.2% | |
| October 31 – November 3, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 790 LV | ±3.8% | |
| October 31 – November 1, 2012 | Barack Obama | 53% | Mitt Romney | 44% | 9 | 772 LV | ±-% | |
| October 29–31, 2012 | Barack Obama | 45% | Mitt Romney | 46% | 1 | 500 LV | ±4.38% | |
| October 26–28, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 574 LV | ±4.2% | |
| October 23–25, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 800 LV | ±3.5% | |
| October 15–21, 2012 | Barack Obama | 53% | Mitt Romney | 45% | 8 | 601 LV | ±5% | |
| October 21, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 500 LV | ±4.5% | |
| October 12 – 14, 2012 | Barack Obama | 50% | Mitt Romney | 40% | 10 | 550 LV | ±4.3% | |
| October 4 – 11, 2012 | Barack Obama | 52% | Mitt Romney | 44% | 8 | 683 LV | ±4.2% | |
| October 7 – 8, 2012 | Barack Obama | 47% | Mitt Romney | 43% | 4 | 500 LV | ±4.38% | |
| October 5–8, 2012 | Barack Obama | 53% | Mitt Romney | 43% | 10 | 937 LV | ±3.2% | |
| September 10–11, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 824 | ±3.4% | |
| September 6–9, 2012 | Barack Obama | 50% | Mitt Romney | 40% | 10 | N/A | ±4.3% |
[Mississippi]
6 electoral votes59%–40%
56%–43%
[Missouri]
10 electoral votes53%–46%
49%–49%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 2–3, 2012 | Barack Obama | 45% | Mitt Romney | 53% | 8 | 835 LV | ±3.4% | |
| October 31 – November 3, 2012 | Barack Obama | 42% | Mitt Romney | 53% | 11 | 779 LV | ±3.8% | |
| October 28 – November 3, 2012 | Barack Obama | 43% | Mitt Romney | 50% | 7 | 589 LV | ±4.1% | |
| October 30, 2012 | Barack Obama | 42.2% | Mitt Romney | 53.8% | 11.6 | 1,217 LV | ±2.9% | |
| October 23 – 25, 2012 | Barack Obama | 41% | Mitt Romney | 54% | 13 | 624 LV | ±4% | |
| October 19 – 21, 2012 | Barack Obama | 46% | Mitt Romney | 52% | 6 | 582 LV | ±4.1% | |
| October 12 – 13, 2012 | Barack Obama | 43% | Mitt Romney | 54% | 11 | 500 LV | ±4.5% | |
| October 12 – 13, 2012 | Barack Obama | 41% | Mitt Romney | 55% | 14 | 1,000 LV | ±3.07% | |
| October 1 – 3, 2012 | Barack Obama | 45% | Mitt Romney | 51% | 6 | 700 LV | ±3.7% | |
| October 2, 2012 | Barack Obama | 46% | Mitt Romney | 49% | 3 | 500 LV | ±4.5% | |
| September 25 – 27, 2012 | Barack Obama | 45% | Mitt Romney | 48% | 3 | 1,145 LV | ±2.9% | |
| September 20, 2012 | Barack Obama | 44% | Mitt Romney | 50% | 6 | 817 LV | ±3.4% | |
| September 7 – 14, 2012 | Barack Obama | 43% | Mitt Romney | 50% | 7 | 734 LV | ±--% | |
| September 11, 2012 | Barack Obama | 45% | Mitt Romney | 48% | 3 | 500 LV | ±4.5% |
[Montana]
3 electoral votes59%–39%
49%–47%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 2–3, 2012 | Barack Obama | 45% | Mitt Romney | 52% | 7 | 836 LV | ±3.4% | |
| October 29–31, 2012 | Barack Obama | 43% | Mitt Romney | 53% | 10 | 625 LV | ±4% | |
| October 29, 2012 | Barack Obama | 43% | Mitt Romney | 53% | 10 | 500 LV | ±4.5% | |
| October 26 – 28, 2012 | Barack Obama | 42.7% | Mitt Romney | 50.4% | 7.7 | 799 LV | ±3.5% | |
| October 19 – 21, 2012 | Barack Obama | 41% | Mitt Romney | 48% | 7 | 828 LV | ±3.4% | |
| October 15 – 16, 2012 | Barack Obama | 43% | Mitt Romney | 53% | 10 | 806 LV | ±3.5% | |
| October 14, 2012 | Barack Obama | 45% | Mitt Romney | 53% | 8 | 500 LV | ±4.5% | |
| October 8 – 10, 2012 | Barack Obama | 41% | Mitt Romney | 52% | 11 | 737 LV | ±3.6% | |
| September 23 – 26, 2012 | Barack Obama | 44% | Mitt Romney | 48% | 4 | 600 LV | ±4.0% | |
| September 19, 2012 | Barack Obama | 42% | Mitt Romney | 51% | 9 | 625 RV | ±4.0% | |
| September 10–11, 2012 | Barack Obama | 45% | Mitt Romney | 50% | 5 | 956 LV | ±3.8% |
Three way race
| Poll source | Date | Democratic | % | Republican | % | Libertarian | % | Lead margin | Sample Size | Margin of error |
| September 19, 2012 | Barack Obama | 42% | Mitt Romney | 51% | Gary Johnson | 2% | 9 |
[Nebraska]
5 electoral votes66%–33%
57%–42%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 1, 2012 | Barack Obama | 41% | Mitt Romney | 54% | 13 | 1,178 LV | ±2.95% | |
| October 26 – 28, 2012 | Barack Obama | 39% | Mitt Romney | 58% | 19 | 761 LV | ±3.5% | |
| October 23 – 25, 2012 | Barack Obama | 38% | Mitt Romney | 52% | 14 | 800 LV | ±3.5% | |
| October 19 – 21, 2012 | Barack Obama | 41% | Mitt Romney | 51% | 10 | 783 LV | ±3.5% | |
| September 17 – 20, 2012 | Barack Obama | 40% | Mitt Romney | 51% | 11 | 800 LV | ±3.5% |
2nd Congressional District
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 23 – 25, 2012 | Barack Obama | 44% | Mitt Romney | 49% | 5 | 679 LV | ±3.8% | |
| October 19 – 21, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | N/A | N/A | |
| September 17 – 20, 2012 | Barack Obama | 44% | Mitt Romney | 44% | Tied |
[Nevada]
6 electoral votes51%–48%
55%–43%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 3–4, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 750 LV | ±3.6% | |
| October 31 – November 3, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 732 LV | ±4.1% | |
| October 29–31, 2012 | Barack Obama | 50% | Mitt Romney | 44% | 6 | 600 LV | ±4% | |
| October 23–29, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 1,212 LV | ±2.9% | |
| October 27–28, 2012 | Barack Obama | 49% | Mitt Romney | 43% | 6 | 500 LV | ±4.4% | |
| October 24, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 955 LV | ±3.2% | |
| October 23–24, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 1,042 LV | ±3% | |
| October 22–24, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 636 LV | ±3.9% | |
| October 23, 2012 | Barack Obama | 50% | Mitt Romney | 48% | 2 | 500 LV | ±4.5% | |
| October 19 – 22, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 600 LV | ±4.0% | |
| October 15–16, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 500 LV | ±4.4% | |
| October 11–15, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 806 LV | ±3.5% | |
| October 15, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 500 LV | ±4.5% | |
| October 4 – 11, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 358 LV | ±6.7% | |
| October 8–10, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 594 LV | ±4% | |
| October 6–9, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 500 LV | ±4.4% | |
| October 8, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 500 LV | ±4.5% | |
| October 3, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 1,006 LV | ±3.1% | |
| September 25 – 27, 2012 | Barack Obama | 53% | Mitt Romney | 42% | 11 | 1,152 LV | ±3.1% | |
| September 23 – 25, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 984 LV | ±3.1% | |
| September 20 – 23, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 600 LV | ±4.0% | |
| September 20, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 500 LV | ±4.5% | |
| September 18 – 20, 2012 | Barack Obama | 52% | Mitt Romney | 43% | 9 | 501 LV | ±4.4% | |
| September 14–18, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 741 LV | ±3.5% |
Three way race
| Poll source | Date | Democratic candidate | % | Republican candidate | % | Libertarian | % | Lead margin | Sample Size | Margin of error |
| September 27-27, 2012 | Barack Obama | 52.5% | Mitt Romney | 42% | Gary Johnson | 2.3% | 10.5 | 1,152 | ±3.1% |
[New Hampshire]
4 electoral votes50%–49%
54%–45%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 3–4, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 687 LV | ±3.7% | |
| November 3–4, 2012 | Barack Obama | 50% | Mitt Romney | 48% | 2 | 1,550 LV | ±2.5% | |
| November 2–4, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 600 LV | ±4% | |
| November 1–4, 2012 | Barack Obama | 51% | Mitt Romney | 48% | 3 | 789 LV | ±3.5% | |
| October 31 – November 3, 2012 | Barack Obama | 47% | Mitt Romney | 43% | 4 | 690 LV | ±4.1% | |
| October 31 – November 2, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 502 LV | ±4.4% | |
| November 1, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 497 LV | ±4.3% | |
| October 29–31, 2012 | Barack Obama | 50% | Mitt Romney | 44% | 6 | 1,017 LV | ±3.7% | |
| October 28–29, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 1,013 LV | ±3% | |
| October 26 – 28, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 874 LV | ±3.3% | |
| October 24 – 28, 2012 | Barack Obama | 47% | Mitt Romney | 42% | 5 | 400 LV | ±5% | |
| October 24 – 25, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 500 LV | ±4.4% | |
| October 23 – 25, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 571 LV | ±4.1% | |
| October 23, 2012 | Barack Obama | 48% | Mitt Romney | 50% | 2 | 500 LV | ±4.5% | |
| October 19 – 22, 2012 | Barack Obama | 47% | Mitt Romney | 49% | 2 | 600 LV | ±4.0% | |
| October 18 – 22, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 400 LV | ±4.9% | |
| October 17 – 21, 2012 | Barack Obama | 51% | Mitt Romney | 42% | 9 | 773 LV | ±3.5% | |
| October 17 – 19, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 1,036 LV | ±3.0% | |
| October 15, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 500 LV | ±4.5% | |
| October 12 – 14, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 500 LV | ±4.4% | |
| October 9 – 11, 2012 | Barack Obama | 46% | Mitt Romney | 50% | 4 | 600 LV | ±4.0% | |
| October 9, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 500 LV | ±4.5% | |
| September 30 – October 6, 2012 | Barack Obama | 47% | Mitt Romney | 41% | 6 | 638 | ±4.1% | |
| September 27 – 30, 2012 | Barack Obama | 54% | Mitt Romney | 39% | 15 | 638 | ±4.0% | |
| September 25 – 27, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 600 LV | ±4.0% | |
| September 23 – 25, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 1,012 | ±3.1% | |
| September 15 – 19, 2012 | Barack Obama | 52% | Mitt Romney | 45% | 7 | 600 | ±4.9% | |
| September 18, 2012 | Barack Obama | 45% | Mitt Romney | 48% | 3 | 500 LV | ±4.5% | |
| September 15–17, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 463 LV | ±% | |
| September 4–10, 2012 | Barack Obama | 45% | Mitt Romney | 40% | 5 | 592 LV | ±4.0% |
[New Jersey]
14 electoral votes52%–46%
57%–42%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 53% | Mitt Romney | 41% | 12 | 987 LV | ±3.4% | |
| October 23 – 25, 2012 | Barack Obama | 51% | Mitt Romney | 41% | 10 | 601 LV | ±4.0% | |
| October 10 – 14, 2012 | Barack Obama | 51% | Mitt Romney | 43% | 8 | 1,319 LV | ±2.7% | |
| October 4 – 8, 2012 | Barack Obama | 51% | Mitt Romney | 40% | 11 | 604 LV | ±4.0% | |
| September 27 – 30, 2012 | Barack Obama | 56% | Mitt Romney | 39% | 17 | 645 LV | ±3.8% | |
| September 19 – 23, 2012 | Barack Obama | 52% | Mitt Romney | 37% | 15 | 613 LV | ±4.0% | |
| September 7 – 14, 2012 | Barack Obama | 52% | Mitt Romney | 40% | 12 | 1,040 LV | ±--% | |
| September 9–12, 2012 | Barack Obama | 51% | Mitt Romney | 37% | 14 | 600 LV | ±4.0% | |
| August 27 – September 2, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 1,471 LV | ±2.6% |
[New Mexico]
5 electoral votes50%–49%
57%–42%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 49% | Mitt Romney | 43% | 6 | 650 LV | ±--% | |
| October 30–31, 2012 | Barack Obama | 49% | Mitt Romney | 41% | 8 | 500 LV | ±4.38% | |
| October 23–25, 2012 | Barack Obama | 50% | Mitt Romney | 41% | 9 | 662 LV | ±3.8% | |
| October 23–24, 2012 | Barack Obama | 53% | Mitt Romney | 44% | 9 | 727 LV | ±n/a% | |
| October 9–11, 2012 | Barack Obama | 49% | Mitt Romney | 39% | 10 | 658 LV | ±3.8% | |
| October 8, 2012 | Barack Obama | 54% | Mitt Romney | 43% | 11 | 500 LV | ±4.5% | |
| September 27, 2012 | Barack Obama | 51% | Mitt Romney | 40% | 11 | 500 LV | ±4.5% | |
| September 17 – 20, 2012 | Barack Obama | 52% | Mitt Romney | 43% | 9 | 3,111 LV | ±1.8% | |
| September 7–9, 2012 | Barack Obama | 53% | Mitt Romney | 42% | 11 | 1,122 LV | ±2.9% | |
| September 3–6, 2012 | Barack Obama | 45% | Mitt Romney | 40% | 5 | 667 LV | ±3.8% |
Three way race
| Poll source | Date | Democratic | % | Republican | % | Libertarian | % | Lead margin | Sample Size | Margin of error |
| October 30–31, 2012 | Barack Obama | 49% | Mitt Romney | 41% | Gary Johnson | 6% | 8 | 500 LV | ±4.38% | |
| October 23–25, 2012 | Barack Obama | 50% | Mitt Romney | 41% | Gary Johnson | 5% | 9 | 662 LV | ±3.8% | |
| October 9–11, 2012 | Barack Obama | 49% | Mitt Romney | 39% | Gary Johnson | 6% | 10 | 658 LV | ±3.8% | |
| September 3–6, 2012 | Barack Obama | 50.9% | Mitt Romney | 40.6% | Gary Johnson | 3.9% | 10.3 | 1,258 LV | ±2.58% | |
| September 3–6, 2012 | Barack Obama | 45% | Mitt Romney | 40% | Gary Johnson | 7% | 5 | 667 LV | ±3.8% |
New York">New York (state)">New York
29 electoral votes58%–40%
63%–36%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 59% | Mitt Romney | 36% | 23 | 1,430 LV | ±2.8% | |
| October 23 – 25, 2012 | Barack Obama | 62% | Mitt Romney | 33% | 29 | 554 LV | ±4.1% | |
| October 22 – 24, 2012 | Barack Obama | 59% | Mitt Romney | 35% | 24 | 750 LV | ±3.6% | |
| October 18 – 21, 2012 | Barack Obama | 61% | Mitt Romney | 35% | 26 | 565 LV | ±4.1% | |
| October 4 – 11, 2012 | Barack Obama | 59% | Mitt Romney | 35% | 24 | 1,142 LV | ±3.2% | |
| September 4–9, 2012 | Barack Obama | 62% | Mitt Romney | 34% | 28 | 1,486 LV | ±2.5% |
[North Carolina]
15 electoral votes56%–44%
50%–49%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 4, 2012 | Barack Obama | 46% | Mitt Romney | 50% | 4 | 1,130 LV | ±2.9% | |
| November 3–4, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 926 LV | ±3.2% | |
| October 31 – November 3, 2012 | Barack Obama | 47% | Mitt Romney | 49% | 2 | 1,500 LV | ±2.8% | |
| October 29 – 31, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 730 LV | ±3.6% | |
| October 22–30, 2012 | Barack Obama | 45% | Mitt Romney | 46% | 1 | 403 LV | ±5% | |
| October 26–29, 2012 | Barack Obama | 45% | Mitt Romney | 50% | 5 | 682 LV | ±3.8% | |
| October 21 – 26, 2012 | Barack Obama | 45% | Mitt Romney | 45% | Tied | 1,238 LV | ±2.79% | |
| October 23 – 24, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 500 LV | ±4.4% | |
| October 25, 2012 | Barack Obama | 46% | Mitt Romney | 52% | 6 | 500 LV | ±4.5% | |
| October 23 – 25, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 880 LV | ±3.3% | |
| October 24, 2012 | Barack Obama | 45% | Mitt Romney | 53% | 8 | 1,723 LV | ±2.4% | |
| October 20–21, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 600 LV | ±4% | |
| October 17 – 18, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 500 LV | ±4.4% | |
| October 17, 2012 | Barack Obama | 46% | Mitt Romney | 52% | 6 | 500 LV | ±4.5% | |
| October 12 – 14, 2012 | Barack Obama | 47% | Mitt Romney | 49% | 2 | 1,084 LV | ±3.0% | |
| September 29 – October 10, 2012 | Barack Obama | 46% | Mitt Romney | 45% | 1 | 605 RV | ±4.0% | |
| October 9, 2012 | Barack Obama | 48% | Mitt Romney | 51% | 3 | 500 LV | ±4.5% | |
| October 6–8, 2012 | Barack Obama | 41% | Mitt Romney | 50% | 9 | 1,325 LV | ±2.9% | |
| October 2, 2012 | Barack Obama | 47% | Mitt Romney | 51% | 4 | 500 LV | ±4.5% | |
| September 29 – October 1, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 573 LV | ±4.2% | |
| September 28 – 30, 2012 | Barack Obama | 46% | Mitt Romney | 50% | 4 | 600 LV | ±4.0% | |
| September 27 – 30, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 981 LV | ±3.1% | |
| September 18–19, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 600 LV | ±4% | |
| September 15–19, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 600 LV | ±4% | |
| September 8–13, 15–18, 2012 | Barack Obama | 46% | Mitt Romney | 43% | 3 | 448 RV | ±4.7% | |
| September 13, 2012 | Barack Obama | 45% | Mitt Romney | 51% | 6 | 500 RV | ±4.5% | |
| September 7–9, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 1,087 LV | ±3.0% | |
| September 4–6, 2012 | Barack Obama | 43% | Mitt Romney | 53% | 10 | 500 RV | ±4.5% | |
| August 31 – Sept 2, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 1,012 LV | ±3.1% |
[North Dakota]
3 electoral votes63%–36%
53%–45%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 26 – 28, 2012 | Barack Obama | 40% | Mitt Romney | 54% | 14 | 625 LV | ±4% | |
| October 26 – 28, 2012 | Barack Obama | 37.8% | Mitt Romney | 54.6% | 16.8 | 752 LV | ±3.6% | |
| October 19 – 21, 2012 | Barack Obama | 39.3% | Mitt Romney | 49.4% | 10.1 | 807 LV | ±3.44% | |
| October 17 – 18, 2012 | Barack Obama | 40% | Mitt Romney | 54% | 14 | 600 LV | ±4.0% | |
| October 12 – 15, 2012 | Barack Obama | 32% | Mitt Romney | 57% | 25 | 500 LV | ±4.4% | |
| October 3 – 5, 2012 | Barack Obama | 40% | Mitt Romney | 54% | 14 | 625 LV | ±4.0% | |
| September 24 – 27, 2012 | Barack Obama | 39% | Mitt Romney | 51% | 12 | 600 LV | ±4.0% |
[Ohio]
18 electoral votes51%–49%
52%–47%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 4–5, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 1,316 LV | ±2.7% | |
| November 3–5, 2012 | Barack Obama | 50.9% | Mitt Romney | 43.5% | 7.4 | 832 LV | ±3.5% | |
| November 3–5, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 680 LV | ±4.3% | |
| November 3–5, 2012 | Barack Obama | 50% | Mitt Romney | 41% | 9 | 1,040 RV | ±3.5% | |
| November 4, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 750 LV | ±4.0% | |
| November 3–4, 2012 | Barack Obama | 52% | Mitt Romney | 47% | 5 | 1,000 LV | ±3.1% | |
| November 2–4, 2012 | Barack Obama | 51% | Mitt Romney | 48% | 3 | 572 LV | ±4.1% | |
| November 2–4, 2012 | Barack Obama | 50.1% | Mitt Romney | 44% | 6.1 | 831 LV | ±3.5% | |
| November 2–4, 2012 | Barack Obama | 48% | Mitt Romney | 44% | 4 | 712 LV | ±4.2% | |
| November 1–4, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 803 LV | ±3.5% | |
| October 31 – November 4, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 901 LV | ±3.3% | |
| November 1–3, 2012 | Barack Obama | 50.2% | Mitt Romney | 42.3% | 7.9 | 827 LV | ±3.5% | |
| November 1–3, 2012 | Barack Obama | 46% | Mitt Romney | 45% | 1 | 1,031 LV | ±3.5% | |
| October 31 – November 3, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,620 LV | ±3% | |
| October 24 – November 3, 2012 | Barack Obama | 50% | Mitt Romney | 48% | 2 | 1,501 LV | ±2.2% | |
| November 1–2, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 500 LV | ±4.4% | |
| October 31 – November 2, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 1,012 LV | ±3.5% | |
| November 1, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 750 LV | ±4% | |
| October 30 – November 1, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 971 LV | ±3.1% | |
| October 30 – November 1, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 1,649 LV | ±2.6% | |
| October 30 – November 1, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 796 LV | ±3.5% | |
| October 30 – November 1, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 936 LV | ±3.7% | |
| October 30–31, 2012 | Barack Obama | 46% | Mitt Romney | 49% | 3 | 1,281 LV | ±2.7% | |
| October 29–31, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 885 LV | ±3.8% | |
| October 29 – 30, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 600 LV | ±4.0% | |
| October 28 – 30, 2012 | Barack Obama | 50% | Mitt Romney | 44% | 6 | 826 LV | ±3.5% | |
| October 25 – 30, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 1,182 LV | ±2.9% | |
| October 29, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 1,000 LV | ±3% | |
| October 28 – 29, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 500 LV | ±4.4% | |
| October 27 – 29, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 825 LV | ±3.5% | |
| October 26 – 29, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 603 LV/AV | ±4.1% | |
| October 28, 2012 | Barack Obama | 48% | Mitt Romney | 50% | 2 | 750 LV | ±4% | |
| October 26 – 28, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 765 LV | ±3.5% | |
| October 26 – 28, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 827 LV | ±3.5% | |
| October 26 – 28, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 718 LV | ±3.7% | |
| October 23 – 28, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 1,110 LV | ±3% | |
| October 27, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 730 LV | ±3.6% | |
| October 23 – 25, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 600 LV | ±4% | |
| October 23 – 25, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 741 RV | ±3.5% | |
| October 23 – 25, 2012 | Barack Obama | 46% | Mitt Romney | 44% | 2 | 600 LV | ±4.0% | |
| October 23 – 25, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 600 LV | ±4.0% | |
| October 22 – 23, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 783 LV | ±3% | |
| October 23, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 750 LV | ±4.0% | |
| October 20 – 23, 2012 | Barack Obama | 46% | Mitt Romney | 44% | 2 | 600 LV | ±4.0% | |
| October 18 – 23, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tied | 1,015 LV | ±3.1% | |
| October 20 – 22, 2012 | Barack Obama | 47% | Mitt Romney | 44% | 3 | 609 LV | ±4.1% | |
| October 19 – 21, 2012 | Barack Obama | 49.9% | Mitt Romney | 45.2% | 4.7 | 810 LV | ±3.44% | |
| October 18 – 21, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 600 LV | ±4.0% | |
| October 17–20, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 1,548 LV | ±3% | |
| October 18–20, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 550 LV | ±4.2% | |
| October 18–20, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 532 LV | ±4.3% | |
| October 18 – 19, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 1,943 LV | ±2.2% | |
| October 17–18, 2012 | Barack Obama | 46% | Mitt Romney | 43% | 3 | 1,131 LV | ±3% | |
| October 17, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 750 LV | ±4.0% | |
| October 12–15, 2012 | Barack Obama | 45% | Mitt Romney | 42% | 3 | 613 LV | ±4.0% | |
| October 12–13, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 880 LV | ±3.3% | |
| October 9 – 11, 2012 | Barack Obama | 45% | Mitt Romney | 44% | 1 | 835 LV | ±3.4% | |
| October 10, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 750 LV | ±4.0% | |
| October 6 – 10, 2012 | Barack Obama | 45% | Mitt Romney | 46% | 1 | 1,313 LV | ±2.7% | |
| October 7 – 9, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 994 LV | ±3.1% | |
| October 7 – 9, 2012 | Barack Obama | 46% | Mitt Romney | 42% | 4 | 842 LV | ±3.4% | |
| October 5 – 9, 2012 | Barack Obama | 45% | Mitt Romney | 44% | 1 | 808 LV | ±3.5% | |
| October 5–8, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 722 LV | ±3.5% | |
| October 5 – 8, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 600 LV | ±4.0% | |
| October 4, 2012 | Barack Obama | 50% | Mitt Romney | 49% | 1 | 500 LV | ±4.5% | |
| October 4, 2012 | Barack Obama | 46% | Mitt Romney | 47% | 1 | 1,200 LV | ±3.0% | |
| September 30 – October 1, 2012 | Barack Obama | 51% | Mitt Romney | 43% | 8 | 931 LV | ±3.2% | |
| September 27 – 30, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 897 LV | ±3.3% | |
| September 19 – 29, 2012 | Barack Obama | 51% | Mitt Romney | 42% | 9 | 1,662 RV | ±2.2% | |
| September 18 – 24, 2012 | Barack Obama | 53% | Mitt Romney | 43% | 10 | 1,162 LV | ±3.0% | |
| September 19 – 23, 2012 | Barack Obama | 52% | Mitt Romney | 44% | 8 | 759 LV | ±4.5% | |
| September 21 – 22, 2012 | Barack Obama | 45% | Mitt Romney | 44% | 1 | 594 LV | ±4.3% | |
| September 15 – 19, 2012 | Barack Obama | 48% | Mitt Romney | 44% | 4 | 600 LV | ±4.0% | |
| September 13 – 18, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 861 LV | ±3.3% | |
| September 16–18, 2012 | Barack Obama | 49% | Mitt Romney | 42% | 7 | 1,009 LV | ±3.0% | |
| September 9–12, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 979 LV | ±3.1% | |
| September 10–12, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 600 LV | ±4.0% | |
| September 7–9, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 1,072 LV | ±3.0% | |
| September 7–8, 2012 | Barack Obama | 47% | Mitt Romney | 43% | 4 | 1,548 LV | ±2.7% | |
| September 2, 2012 | Barack Obama | 44% | Mitt Romney | 47% | 3 | 1,381 RV | ±2.9% |
Three way race
| Poll source | Date | Democratic | % | Republican | % | Libertarian | % | Lead margin | Sample Size | Margin of error |
| September 21–22, 2012 | Barack Obama | 45% | Mitt Romney | 38% | Gary Johnson | 11% | 7 | 594 | ±4.3% | |
| September 7–8, 2012 | Barack Obama | 45% | Mitt Romney | 43% | Gary Johnson | 5% | 2 | 1,548 | ±2.7% |
[Oklahoma]
7 electoral votes66%–34%
67%–34%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 18 – 24, 2012 | Barack Obama | 33% | Mitt Romney | 59% | 26 | 305 LV | ±5.6% |
[Oregon]
7 electoral votes51%–47%
57%–40%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 1, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 921 LV | ±3.2% | |
| October 25 – 28, 2012 | Barack Obama | 47% | Mitt Romney | 41% | 6 | 405 LV | ±5% | |
| October 24 – 25, 2012 | Barack Obama | 47% | Mitt Romney | 42% | 5 | 615 LV | ±3.9% | |
| October 16 – 18, 2012 | Barack Obama | 49% | Mitt Romney | 42% | 7 | 579 LV | ±4.2% | |
| September 10–13, 2012 | Barack Obama | 50% | Mitt Romney | 41% | 9 | 552 LV | ±4.3% |
[Pennsylvania]
20 electoral votes51%–48%
54%–44%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 4, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,060 LV | ±3% | |
| November 2 – 4, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 507 LV | ±4.2% | |
| November 2 – 3, 2012 | Barack Obama | 52% | Mitt Romney | 46% | 6 | 790 LV | ±3.5% | |
| November 1 – 3, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 430 LV | ±5% | |
| October 31 – November 3, 2012 | Barack Obama | 52% | Mitt Romney | 44% | 8 | 1,273 LV | ±3.3% | |
| October 29–31, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 800 LV | ±3.5% | |
| October 30, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,000 LV | ±3% | |
| October 23–28, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 547 LV | ±4.2% | |
| October 23–25, 2012 | Barack Obama | 49% | Mitt Romney | 43% | 6 | 600 LV | ±4% | |
| October 24, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 500 LV | ±4.5% | |
| October 21, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 887 LV | ±3.3% | |
| October 19 – 21, 2012 | Barack Obama | 49.5% | Mitt Romney | 45.5% | 4 | 760 LV | ±3.55% | |
| October 17 – 21, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 444 LV | ±5.0% | |
| October 18 – 20, 2012 | Barack Obama | 52% | Mitt Romney | 42% | 10 | 559 LV | ±4.2% | |
| October 12 – 14, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 1,519 LV | ±2.5% | |
| October 12 – 14, 2012 | Barack Obama | 51% | Mitt Romney | 44% | 7 | 500 LV | ±4.4% | |
| October 10 – 14, 2012 | Barack Obama | 49% | Mitt Romney | 45% | 4 | 438 LV | ±5.0% | |
| October 11, 2012 | Barack Obama | 50% | Mitt Romney | 42% | 8 | 600 LV | ±4.0% | |
| October 9, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 500 LV | ±4.5% | |
| October 4 – 6, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 725 LV | ±3.64% | |
| October 1 – 5, 2012 | Barack Obama | 43% | Mitt Romney | 40% | 3 | 545 LV | ±4.2% | |
| September 22–26, 2012 | Barack Obama | 49% | Mitt Romney | 42% | 7 | 427 LV | ±5.0% | |
| September 18–24, 2012 | Barack Obama | 54% | Mitt Romney | 42% | 12 | 1,180 LV | ±3.0% | |
| September 18–23, 2012 | Barack Obama | 52% | Mitt Romney | 43% | 9 | 392 LV | ±4.9% | |
| September 18–20, 2012 | Barack Obama | 47% | Mitt Romney | 45% | 2 | 800 LV | ±3.46% | |
| September 12–20, 2012 | Barack Obama | 48% | Mitt Romney | 40% | 8 | 522 LV | ±4.29% | |
| September 19, 2012 | Barack Obama | 51% | Mitt Romney | 39% | 12 | 500 LV | ±4.5% | |
| September 18, 2012 | Barack Obama | 48% | Mitt Romney | 42% | 6 | 1,214 LV | ±2.8% | |
| September 10–16, 2012 | Barack Obama | 50% | Mitt Romney | 41% | 9 | 640 LV | ±4.0% | |
| September 9–12, 2012 | Barack Obama | 50% | Mitt Romney | 39% | 11 | 600 LV | ±4% |
[Rhode Island]
4 electoral votes59%–39%
63%–35%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 24–27, 2012 | Barack Obama | 54% | Mitt Romney | 33% | 21 | 601 LV | ±4% | |
| September 26 – October 5, 2012 | Barack Obama | 58% | Mitt Romney | 32% | 26 | 471 LV | ±4.4% | |
| September 26–29, 2012 | Barack Obama | 57.3% | Mitt Romney | 33.1% | 24.2 | 501 LV | ±4.38% |
[South Carolina]
9 electoral votes58%–41%
54%–45%
[South Dakota]
3 electoral votes60%–38%
53%–45%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 28–31, 2012 | Barack Obama | 42% | Mitt Romney | 50% | 8 | 671 LV | ±3.78% |
[Tennessee]
11 electoral votes57%–43%
57%–42%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 42% | Mitt Romney | 53% | 11 | 697 LV | ±4% | |
| October 16 – 21, 2012 | Barack Obama | 34% | Mitt Romney | 59% | 25 | 609 LV | ±4% | |
| October 4 – 11, 2012 | Barack Obama | 43% | Mitt Romney | 52% | 9 | 484 LV | ±5% | |
| September 7 – 14, 2012 | Barack Obama | 42% | Mitt Romney | 50% | 8 | 694 LV | ±--% |
[Texas]
38 electoral votes61%–38%
55%–44%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 38% | Mitt Romney | 57% | 19 | 1,563 LV | ±3.2% | |
| October 15 – 21, 2012 | Barack Obama | 39% | Mitt Romney | 55% | 16 | 540 LV | ±4.22% | |
| October 4 – 11, 2012 | Barack Obama | 41% | Mitt Romney | 55% | 14 | 958 LV | ±4.5% | |
| September 10 – 26, 2012 | Barack Obama | 39% | Mitt Romney | 58% | 19 | 1,175 RV | ±4.66% | |
| September 9–11, 2012 | Barack Obama | 40% | Mitt Romney | 55% | 15 | 1,000 LV | ±3.1% |
[Utah]
6 electoral votes72%–26%
62%–34%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 26 – November 1, 2012 | Barack Obama | 26% | Mitt Romney | 69% | 43 | 870 LV | ±3.4% | |
| October 9–13, 2012 | Barack Obama | 20% | Mitt Romney | 71% | 51 | 500 LV | ±4.4% | |
| October 8–13, 2012 | Barack Obama | 21% | Mitt Romney | 74% | 53 | n/a | ±7.6% |
[Vermont]
3 electoral votes59%–39%
67%–30%
[Virginia]
13 electoral votes54%–46%
53%–46%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 3–5, 2012 | Barack Obama | 48.5% | Mitt Romney | 47.9% | 0.6 | 800 LV | ±3.5% | |
| November 3–5, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 828 LV | ±3.9% | |
| November 3–5, 2012 | 49% | 42% | Mitt Romney | 7 | 1,111 RV | ±3.4% | - | |
| November 4, 2012 | Barack Obama | 48% | Mitt Romney | 50% | 2 | 750 LV | ±4% | |
| November 3–4, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 975 LV | ±3.1% | |
| November 2–4, 2012 | Barack Obama | 51.8% | Mitt Romney | 44.2% | 7.6 | 814 LV | ±3.5% | |
| November 2–4, 2012 | Barack Obama | 47% | Mitt Romney | 46% | 1 | 662 LV | ±4.3% | |
| November 1–3, 2012 | Barack Obama | 50.4% | Mitt Romney | 44.2% | 6.2 | 819 LV | ±3.1% | |
| November 1–3, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 947 LV | ±3.6% | |
| October 31 – November 3, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 1,497 LV | ±2.7% | |
| November 1–2, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 1,165 LV | ±2.9% | |
| October 31 – November 2, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 1,065 LV | ±3.4% | |
| October 30 – November 2, 2012 | Barack Obama | 48% | Mitt Romney | 45% | 3 | 800 LV | ±3.4% | |
| October 30 – November 1, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 1,069 LV | ±3% | |
| October 30 – November 1, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 792 LV | ±4% | |
| October 30 – 31, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 600 LV | ±4.0% | |
| October 29–31, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 703 LV | ±4.2% | |
| October 30, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 1,000 LV | ±3% | |
| October 28 – 30, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 800 LV | ±3.5% | |
| October 27–29, 2012 | Barack Obama | 45% | Mitt Romney | 49% | 4 | 829 LV | ±3.5% | |
| October 26–28, 2012 | Barack Obama | 48% | Mitt Romney | 47% | 1 | 1,076 LV | ±3% | |
| October 23 – 28, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 1,074 LV | ±3% | |
| October 25–27, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 807 LV | --- | |
| October 26, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 645 LV | ±3.9% | |
| October 23–26, 2012 | Barack Obama | 44% | Mitt Romney | 49% | 5 | 638 LV | ±4% | |
| October 22–26, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 1,228 LV | ±3.5% | |
| October 23 – 25, 2012 | Barack Obama | 48% | Mitt Romney | 48% | Tied | 834 LV | ±3.5% | |
| October 23 – 25, 2012 | Barack Obama | 47% | Mitt Romney | 47% | Tied | 600 LV | ±4.0% | |
| October 24, 2012 | Barack Obama | 48% | Mitt Romney | 50% | 2 | 750 LV | ±4.0% | |
| October 23–24, 2012 | Barack Obama | 45% | Mitt Romney | 47% | 2 | 1126 LV | ±3.0% | |
| October 23 – 24, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 722 LV | ±3.6% | |
| October 22 – 24, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 832 LV | ±3.5% | |
| October 18 – 21, 2012 | Barack Obama | 46% | Mitt Romney | 45% | 1 | 800 LV | ±3.46% | |
| October 19 – 20, 2012 | Barack Obama | 47% | Mitt Romney | 49% | 2 | 1,000 LV | ±3.07% | |
| October 18 – 19, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 500 LV | ±4.4% | |
| October 18, 2012 | Barack Obama | 47% | Mitt Romney | 50% | 3 | 750 LV | ±4.0% | |
| September 19 – October 17, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 465 LV | ±3.4% | |
| October 15 – 16, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 733 LV | ±3.6% | |
| October 12 – 14, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 600 LV | ±4.0% | |
| October 12 – 13, 2012 | Barack Obama | 43% | Mitt Romney | 54% | 11 | 696 LV | ±3.7% | |
| October 11, 2012 | Barack Obama | 47% | Mitt Romney | 49% | 2 | 750 LV | ±4.0% | |
| October 8–9, 2012 | Barack Obama | 44% | Mitt Romney | 51% | 7 | 600 LV | ±4.0% | |
| October 7–9, 2012 | Barack Obama | 47% | Mitt Romney | 48% | 1 | 981 LV | ±3.1% | |
| October 4–9, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 1,288 LV | ±2.7% | |
| October 4–7, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 725 LV | ±3.7% | |
| October 4, 2012 | Barack Obama | 48% | Mitt Romney | 49% | 1 | 500 LV | ±4.5% | |
| October 4, 2012 | Barack Obama | 45% | Mitt Romney | 48% | 3 | 1,200 LV | ±3.0% | |
| September 30 – October 1, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 1,273 RV | ±3.1% | |
| September 19 – 28, 2012 | Barack Obama | 48% | Mitt Romney | 40% | 8 | 589 LV | ±4.0% | |
| September 24 – 27, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 600 LV | ±4.0% | |
| September 24 – 26, 2012 | Barack Obama | 46% | Mitt Romney | 44% | 2 | 600 LV | ±4.0% | |
| September 15 – 19, 2012 | Barack Obama | 46% | Mitt Romney | 43% | 3 | 600 LV | ±4.0% | |
| September 16–18, 2012 | Barack Obama | 50% | Mitt Romney | 43% | 7 | 1,006 LV | ±3.0% | |
| September 11–17, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 1,474 LV | ±3.0% | |
| September 13–16, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 1,021 LV | ±3.1% | |
| September 12–16, 2012 | Barack Obama | 52% | Mitt Romney | 44% | 8 | 847 LV | ±3.5% | |
| September 13, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 500 LV | ±4.5% | |
| September 9–11, 2012 | Barack Obama | 49% | Mitt Romney | 44% | 5 | 996 LV | ±3.1% | |
| September 8–9, 2012 | Barack Obama | 44% | Mitt Romney | 49% | 5 | 2,238 LV | ±2.2% |
Four way race
| Poll source | Date administered | Democrat | % | Republican | % | Libertarian | % | Constitution | % | Lead margin |
| September 24 – 26, 2012 | Barack Obama | 46% | Mitt Romney | 44% | Gary Johnson | 1% | Virgil Goode | 1% | 2 |
Washington">Washington (state)">Washington
12 electoral votes53%–46%
58%–40%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| October 31 – November 3, 2012 | Barack Obama | 54% | Mitt Romney | 40% | 14 | 837 LV | ±--% | |
| November 1 – 3, 2012 | Barack Obama | 53% | Mitt Romney | 46% | 7 | 932 LV | ±3.2% | |
| October 28 – 31, 2012 | Barack Obama | 54% | Mitt Romney | 40% | 14 | 555 LV | ±4.2% | |
| October 18 – 31, 2012 | Barack Obama | 57% | Mitt Romney | 36% | 21 | 632 LV | ±3.9% | |
| October 17 – 20, 2012 | Barack Obama | 52% | Mitt Romney | 39% | 13 | 500 LV | ±4.4% | |
| October 15 – 16, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 574 LV | ±--% | |
| October 1–16, 2012 | Barack Obama | 52% | Mitt Romney | 41% | 11 | 782 LV | ±3.5% | |
| October 14, 2012 | Barack Obama | 55% | Mitt Romney | 42% | 13 | 500 LV | ±4.5% | |
| October 12 – 14, 2012 | Barack Obama | 54% | Mitt Romney | 40% | 14 | 543 LV | ±4.3% | |
| September 28 – 30, 2012 | Barack Obama | 56% | Mitt Romney | 36% | 20 | 540 LV | ±4.3% | |
| September 26, 2012 | Barack Obama | 52% | Mitt Romney | 41% | 11 | 500 LV | ±4.5% | |
| September 21–22, 2012 | Barack Obama | 56% | Mitt Romney | 39% | 17 | 625 RV | ±4.6% | |
| September 9–12, 2012 | Barack Obama | 53% | Mitt Romney | 36% | 17 | 405 RV | ±5.0% | |
| September 7–9, 2012 | Barack Obama | 53% | Mitt Romney | 42% | 11 | 563 | ±n/a% | |
| September 7–9, 2012 | Barack Obama | 54% | Mitt Romney | 38% | 16 | 700 | ±4.4% |
[West Virginia]
5 electoral votes56%–43%
56%–43%
[Wisconsin]
10 electoral votes50%–49%
56%–42%
| Poll source | Date administered | Democrat | % | Republican | % | Lead margin | Sample Size | Margin of error |
| November 1–3, 2012 | Barack Obama | 53% | Mitt Romney | 46% | 7 | 482 LV | ±4.5% | |
| November 2 – 3, 2012 | Barack Obama | 51% | Mitt Romney | 48% | 3 | 1,256 LV | ±2.8% | |
| October 31 – November 3, 2012 | Barack Obama | 50% | Mitt Romney | 46% | 4 | 1,225 LV | ±3.1% | |
| November 1–2, 2012 | Barack Obama | 48% | Mitt Romney | 42% | 6 | 500 LV | ±4.4% | |
| October 30 – November 1, 2012 | Barack Obama | 52% | Mitt Romney | 45% | 7 | 1,210 LV | ±3% | |
| October 30–31, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 1,074 LV | ±3% | |
| October 30, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 1,000 LV | ±3% | |
| October 29–30, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 825 LV | ±3.4% | |
| October 29, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tie | 500 LV | ±4.5% | |
| October 28–29, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 1,065 LV | ±3% | |
| October 25–29, 2012 | Barack Obama | 51% | Mitt Romney | 42% | 9 | 402 LV | ±5% | |
| October 25–28, 2012 | Barack Obama | 51% | Mitt Romney | 43% | 8 | 1,243 LV | ±2.8% | |
| October 24–25, 2012 | Barack Obama | 48% | Mitt Romney | 43% | 5 | 500 LV | ±4.4% | |
| October 25, 2012 | Barack Obama | 49% | Mitt Romney | 49% | Tie | 500 LV | ±4.5% | |
| October 23–24, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 827 LV | ±3.4% | |
| October 18–20, 2012 | Barack Obama | 51% | Mitt Romney | 46% | 5 | 502 LV | ±4.5% | |
| October 18, 2012 | Barack Obama | 50% | Mitt Romney | 48% | 2 | 500 LV | ±4.5% | |
| October 15 – 17, 2012 | Barack Obama | 48% | Mitt Romney | 46% | 2 | 625 LV | ±4% | |
| October 15 – 17, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 1,295 RV | ±3.1% | |
| October 15, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 1,000 LV | ±3% | |
| October 11–14, 2012 | Barack Obama | 49% | Mitt Romney | 48% | 1 | 870 LV | ±3.4% | |
| October 4 – 11, 2012 | Barack Obama | 51% | Mitt Romney | 47% | 4 | 639 LV | ±4.9% | |
| October 4–9, 2012 | Barack Obama | 50% | Mitt Romney | 47% | 3 | 1,327 LV | ±2.7% | |
| October 9, 2012 | Barack Obama | 51% | Mitt Romney | 49% | 2 | 500 LV | ±4.5% | |
| October 4 – 6, 2012 | Barack Obama | 49% | Mitt Romney | 47% | 2 | 979 LV | ±3.1% | |
| September 27 – 30, 2012 | Barack Obama | 53% | Mitt Romney | 42% | 11 | 894 LV | ±3.3% | |
| September 20 – 23, 2012 | Barack Obama | 53% | Mitt Romney | 41% | 12 | 1,238 LV | ±2.8% | |
| September 18 – 19, 2012 | Barack Obama | 52% | Mitt Romney | 45% | 7 | 842 LV | ±3.4% | |
| September 16 – 18, 2012 | Barack Obama | 50% | Mitt Romney | 45% | 5 | 968 LV | ±3.2% | |
| September 17, 2012 | Barack Obama | 49% | Mitt Romney | 46% | 3 | 500 LV | ±4.5% | |
| September 13–16, 2012 | Barack Obama | 54% | Mitt Romney | 40% | 14 | 601 LV | ±3% | |
| September 11–17, 2012 | Barack Obama | 51% | Mitt Romney | 45% | 6 | 1,485 LV | ±3.0% |
Three way race
| Poll source | Date | Democratic | % | Republican | % | Libertarian | % | Lead margin | Sample Size | Margin of error |
| September 20 – 23, 2012 | Barack Obama | 52.5% | Mitt Romney | 41.0% | Gary Johnson | 1.2% | 12 | 1,238 LV | ±2.8% |
[Wyoming]
3 electoral votes69%–29%
65%–33%
No polls conducted