Racial and ethnic composition 2020 census As of the
2020 census, Jefferson County had a population of 14,510, 5,816 households, and 3,762 families; the population density was 24.3 per square mile (9.4/km) and there were 6,690 housing units at an average density of 11.2 per square mile (4.3/km). 16.9% of the population was under the age of 18, 6.1% from 18 to 24, 20.9% from 25 to 44, 31.3% from 45 to 64, and 24.7% who were 65 years of age or older. The median age was 49.8 years. For every 100 females, there were 106.5 males, and for every 100 females ages 18 and older, there were 106.7 males. Of the 5,816 households, 23.6% had children under the age of 18 living in them, 46.2% were married-couple households, 20.0% were households with a male householder and no spouse or partner present, and 29.1% were households with a female householder and no spouse or partner present. About 30.2% of all households were made up of individuals and 15.3% had someone living alone who was 65 years of age or older. The percent of those with a bachelor’s degree or higher was estimated to be 18.2% of the population. There were 6,690 housing units, of which 13.1% were vacant. Among occupied housing units, 77.2% were owner-occupied and 22.8% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 4.7%. The 2016-2020 5-year
American Community Survey estimates show that the median household income was $49,081 (with a margin of error of +/- $7,142). The median family income was $62,571 (+/- $4,655). Males had a median income of $36,603 (+/- $4,356) versus $31,473 (+/- $3,015) for females. The median income for those above 16 years old was $32,454 (+/- $5,086). Approximately, 11.8% of families and 17.0% of the population were below the
poverty line, including 27.8% of those under the age of 18 and 7.9% of those ages 65 or over.
2010 census As of the
census of 2010, there were 14,761 people, 5,646 households, and 3,798 families residing in the county. The
population density was . There were 5,251 housing units at an average density of . The racial makeup of the county was 60.4%
White, 36.2%
Black or
African American, 0.30%
Native American, 0.40%
Asian, 0.0%
Pacific Islander, 1.50% from
other races, and 1.30% from two or more races. 3.70% of the population were
Hispanic or
Latino of any race. There were 5,646 households, out of which 26.9% had individuals under the age of 18 living with them, 47.30% were
married couples living together, 15.10% had a female householder with no husband present, and 32.70% were non-families. 28.1% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.89. In the county, the population was spread out, with 18.6% under the age of 18, 8.20% from 18 to 24, 25.0% from 25 to 44, 32.30% from 45 to 64, and 16.5% who were 65 years of age or older. The median age was 44.1 years. For every 100 females, there were 109.6 males. For every 100 females age 18 and over, there were 110.00 males age 18 and over.
2000 census The following income information is from the 2000 census. The median income for a household in the county was $32,998, and the median income for a family was $40,407. Males had a median income of $26,271 versus $25,748 for females. The
per capita income for the county was $17,006. About 13.30% of families and 17.10% of the population were below the
poverty line, including 21.70% of those under age 18 and 17.00% of those age 65 or over. ==Government and politics==