List of islands of the United States by area
This is a list of islands of the United States, as ordered by area. It includes most islands with an area greater than 20 square miles. Mainland areas cut by man-made canals are not considered islands.
Islands over
Islands
This section of the list might not be complete, but covers almost all of the islands in the United States over.| Rank | Island's Name | Area | Area | Location | Population |
| 29 | Wrangell Island | 216 | 560 | 2,401 | |
| 30 | Mitkof Island | 211 | 546 | 3,364 | |
| 31 | Padre Island | 209 | 542 | 2,816 | |
| 32 | Guam | 209 | 541 | 154,805 | |
| 33 | Isle Royale | 206 | 534 | 0 | |
| 34 | Tanaga Island | 204 | 529 | 0 | |
| 35 | Zarembo Island | 185 | 478 | 0 | |
| 36 | Unga Island | 177 | 461 | 0 | |
| 37 | Amlia | 176 | 459 | 0 | |
| 38 | Hinchinbrook Island | 170 | 445 | 5 | |
| 39 | Kosciusko Island | 169 | 438 | 52 | |
| 40 | Whidbey Island | 169 | 437 | 58,211 | |
| 41 | Kruzof Island | 168 | 435 | 0 | |
| 42 | Kanaga Island | 142 | 369 | 0 | |
| 43 | Lānai | 141 | 364 | 3,193 | |
| 44 | St. Matthew Island | 137 | 354 | 0 | |
| 45 | Annette Island | 132 | 342 | 1,447 | |
| 46 | Akutan Island | 129 | 334 | 713 | |
| 47 | Drummond Island | 125 | 324 | 1,058 | |
| 48 | Hagemeister Island | 120 | 312 | 0 | |
| 49 | Nagai Island | 120 | 310 | 0 | |
| 50 | Amchitka | 119 | 309 | 0 | |
| 51 | Sitkalidak Island | 119 | 309 | 0 | |
| 52 | Mount Desert Island | 108 | 280 | 10,424 | |
| 53 | Kiska | 107 | 278 | 0 | |
| 54 | Knight Island | 101 | 260 | 0 | |
| 55 | Marsh Island | 100 | 259 | 0 | |
| 56 | Santa Cruz Island | 98 | 254 | 2 | |
| 57 | Gravina Island | 95 | 245 | 50 | |
| 58 | Martha's Vineyard | 91 | 236 | 14,901 | |
| 59 | Agattu | 90 | 234 | 0 | |
| 60 | Semisopochnoi Island | 86 | 224 | 0 | |
| 61 | Johns Island | 84 | 217 | 11,477 | |
| 62 | Seguam Island | 83 | 215 | 1 | |
| 63 | Saint Croix | 84 | 212 | 53,234 | |
| 64 | Yakobi Island | 82 | 212 | 0 | |
| 65 | Santa Rosa Island | 81 | 209 | 2 | |
| 66 | Raspberry Island | 77 | 200 | 2 | |
| 67 | Douglas Island | 77 | 199 | 5,297 | |
| 68 | Santa Catalina Island | 75 | 194 | 3,696 |
Islands under
This section of the list is not complete, although it should cover most of the islands in the United States over.| Island's Name | Area | Area | Location | Population |
| Heceta Island | 70 | 181 | 14 | |
| Niihau | 70 | 180 | 160 | |
| Saipan | 69 | 180 | 62,392 | |
| Tugidak Island | 69 | 180 | 0 | |
| Hawkins Island | 67 | 175 | 4 | |
| Yunaska Island | 67 | 172 | 0 | |
| Sitkinak Island | 65 | 169 | 0 | |
| Akun Island | 65 | 168 | 0 | |
| Shuyak Island | 65 | 168 | 0 | |
| Chuginadak Island | 65 | 167 | 0 | |
| Sukkwan Island | 65 | 167 | 9 | |
| Galveston Island | 64 | 166 | 58,175 | |
| Matagorda Island | 61 | 157 | 0 | |
| Great Sitkin Island | 60 | 156 | 0 | |
| Staten Island | 59 | 153 | 443,728 | |
| Deer Island | 58 | 152 | 0 | |
| Duke Island | 57 | 149 | ? | |
| Orcas Island | 57 | 148 | 4,453 | |
| Cumberland Island | 57 | 147 | Georgia | 0 |
| San Clemente Island | 57 | 147 | 0 | |
| Uganik Island | 57 | 147 | 0 | |
| St. Michael Island | 56 | 145 | 915 | |
| Stuart Island | 56 | 145 | 0 | |
| Hilton Head Island | 55 | 144 | 33,862 | |
| Beaver Island | 55 | 144 | 551 | |
| San Juan Island | 55 | 143 | 6,822 | |
| Suemez Island | 52 | 135 | 0 | |
| Tutuila | 52 | 135 | 55,876 | |
| Esther Island | 52 | 133 | 31 | |
| Vieques | 51 | 132 | 9,106 | |
| Sanak Island | 50 | 128 | 0 | |
| Sugar Island | 49 | 128 | 652 | |
| Bois Blanc Island | 49 | 127 | 71 | |
| Nantucket | 48 | 124 | 9,520 | |
| Kagalaska Island | 45 | 116 | 0 | |
| Kahoolawe | 45 | 116 | 0 | |
| Long Island | 45 | 115 | 0 | |
| Chirikof Island | 44 | 115 | 0 | |
| Wadmalaw Island | 42 | 109 | 2,611 | |
| Antelope Island | 42 | 109 | 0 | |
| Dolgoi Island | 41 | 107 | 0 | |
| Fidalgo Island | 41 | 107 | 20,700 | |
| Baker Island | 41 | 105 | ? | |
| Camano Island | 40 | 105 | 13,358 | |
| Saint Paul Island | 40 | 104 | 532 | |
| Sedanka Island | 40 | 103 | 0 | |
| Deer Isle | <40 | <102 | <3,028 | |
| Tinian | 39 | 102 | 3,540 | |
| Aquidneck Island/Rhode Island | 38 | 98 | 60,870 | |
| Vashon Island | 37 | 96 | 10,123 | |
| Tigalda Island | 35 | 91 | 0 | |
| Saint George Island | 35 | 90 | 100 | |
| Catherine Island | 34 | 87 | 0 | |
| Hatteras Island | 34 | 86 | 4,001 | |
| Rota | 33 | 85 | 2,477 | |
| Sauvie Island | 33 | 85 | 1,078 | |
| Grand Isle | 32 | 82 | 3,651 | |
| Kent Island | 32 | 82 | 16,812 | |
| Pine Island | 32 | 82 | 8,235 | |
| Saint Thomas | 32 | 81 | 51,181 | |
| Coronation Island | 30 | 78 | 0 | |
| Lopez Island | 30 | 77 | 2,177 | |
| Grand Island | 29 | 73 | 18,621 | |
| Bainbridge Island | 28 | 72 | 20,308 | |
| Gareloi Island | 26 | 67 | 0 | |
| Madeline Island | 24 | 62 | 246 | |
| Washington Island | 24 | 61 | 600 | |
| Vinalhaven Island | 23 | 61 | 1,235 | |
| Manhattan | 23 | 60 | 1,537,195 | |
| San Nicolas Island | 23 | 59 | 0 | |
| Alameda Island | 23 | 59 | 73,812 | |
| Marquette Island | 23 | 59 | 0 | |
| Woronkofski Island | 23 | 59 | 0 | |
| Grand Island | 22 | 58 | 45 | |
| North Manitou Island | 22 | 58 | 0 | |
| Neebish Island | 22 | 56 | 66 | |
| Saint John | 20 | 51 | 4,007 | |
| Fenwick Island | 15 | 38 | 8,002 | |
| San Miguel Island | 15 | 38 | 0 | |
| Block Island | 9 | 25 | 1,051 | |
| South Manitou Island | 8 | 21 | 0 | |
| Mercer Island | 7 | 17 | 22,036 | |
| Dauphin Island | 6.26 | 16.2 | 1,371 | |
| Kelley's Island | 4.3 | 11 | 312 | |
| Mackinac Island | 3.7 | 9.7 | 492 |