Jamestown is located at. According to the United States Census Bureau, the CDP has a total area of, 99.93% of it land and 0.07% of it water.
Demographics
2010
At the 2010 census Jamestown had a population of 3,433. The population density was 1,145.7 people per square mile. The racial makeup of Jamestown was 2,948 White, 20 African American, 96 Native American, 27 Asian, 4 Pacific Islander, 135 from other races, and 203 from two or more races. Hispanic or Latino of any race were 511 people. The census reported that 3,423 people lived in households, 10 lived in non-institutionalized group quarters, and no one was institutionalized. There were 1,501 households, 399 had children under the age of 18 living in them, 592 were opposite-sex married couples living together, 209 had a female householder with no husband present, 80 had a male householder with no wife present. There were 100 unmarried opposite-sex partnerships, and 4 same-sex married couples or partnerships. 513 households were one person and 299 had someone living alone who was 65 or older. The average household size was 2.28. There were 881 families ; the average family size was 2.89. The age distribution was 752 people under the age of 18, 289 people aged 18 to 24, 686 people aged 25 to 44, 938 people aged 45 to 64, and 768 people who were 65 or older. The median age was 44.7 years. For every 100 females, there were 90.2 males. For every 100 females age 18 and over, there were 84.1 males. There were 1,645 housing units at an average density of 549.0 per square mile, of the occupied units 885 were owner-occupied and 616 were rented. The homeowner vacancy rate was 3.4%; the rental vacancy rate was 9.5%. 1,857 people lived in owner-occupied housing units and 1,566 people lived in rental housing units.
2000
At the 2000 census there were 3,017 people, 1,293 households, and 812 families in the CDP. The population density was 987.0 people per square mile. There were 1,446 housing units at an average density of 473.0 per square mile. The racial makeup of the CDP was 91.48% White, 0.10% African American, 2.22% Native American, 1.19% Asian, 0.27% Pacific Islander, 1.92% from other races, and 2.82% from two or more races. Hispanic or Latino of any race were 9.48%. Of the 1,293 households 26.2% had children under the age of 18 living with them, 45.9% were married couples living together, 13.1% had a female householder with no husband present, and 37.2% were non-families. 31.1% of households were one person and 18.1% were one person aged 65 or older. The average household size was 2.27 and the average family size was 2.84. The age distribution was 23.0% under the age of 18, 7.4% from 18 to 24, 22.2% from 25 to 44, 23.2% from 45 to 64, and 24.2% 65 or older. The median age was 42 years. For every 100 females, there were 87.4 males. For every 100 females age 18 and over, there were 79.5 males. The median household income was $25,847 and the median family income was $34,896. Males had a median income of $27,083 versus $26,250 for females. The per capita income for the CDP was $16,209. About 14.1% of families and 16.3% of the population were below the poverty line, including 23.3% of those under age 18 and 5.5% of those age 65 or over.