According to the U.S. Census Bureau, the county has an area of 250 square miles (650 km2), of which 244 square miles (630 km2) is land and 6.2 square miles (16 km2) (2.5%) is water.[4] It is the smallest county by area in Florida.
As of the 2020 United States census, there were 16,147 people, 4,008 households, and 2,873 families residing in the county.
At the 2000 census,[14] there were 13,442 people, 3,367 households and 2,606 families residing in the county. The population density was 56 per square mile (22/km2). There were 3,736 housing units at an average density of 16 per square mile (6/km2). The racial makeup of the county was 73.62% White, 22.84% Black or African American, 0.66% Native American, 0.31% Asian, 0.02% Pacific Islander, 1.04% from other races, and 1.50% from two or more races. 3.55% of the population were Hispanic or Latino of any race.
Of the 3,367 households, 41.80% had children under the age of 18 living with them, 57.70% were married couples living together, 15.00% had a female householder with no husband present, and 22.60% were non-families. 19.50% of all households were made up of individuals, and 7.10% had someone living alone who was 65 years of age or older. The average household size was 2.76 and the average family size was 3.13.
The age distribution was 21.80% under the age of 18, 8.70% from 18 to 24, 39.80% from 25 to 44, 22.20% from 45 to 64, and 7.50% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 183.00 males. For every 100 females age 18 and over, there were 215.20 males. This extremely skewed gender distribution is the result of the county's male prison population.
The median household income was $34,563, and the median family income was $37,516. Males had a median income of $28,571 versus $22,083 for females. The county's per capita income was $12,333. About 10.50% of families and 14.00% of the population were below the poverty line, including 14.60% of those under age 18 and 16.20% of those age 65 or over.
The county suffers a death rate of about 1600 per 100,000 residents, the highest in the nation.[15]
The Florida Department of Corrections (FDOC) operates Region II Correctional Facility Office in an unincorporated area in Union County.[17] FDOC also maintains the Union Correctional Institution in an unincorporated area in the county.[18] Union Correctional Institution houses one of two death rows for men in Florida.[19] About a third of the county's population is imprisoned, compared to a statewide figure of one-half percent.[16]
In 1986, local county volunteers ran a make shift library in the local Community Center which consisted of donated books and other items. Soon the County was able to fund their own public library from tax money. An old bank building was renovated and used for the new public library. In 1990, the library was open to the public. In 1996, the Union County Public Library became apart of the New River Public Library Cooperative to enhance and support library services for patrons throughout the county.[23]
The Union County Public Library serves the county. The branch is at 250 SE 5th Avenue, Lake Butler, Florida 32054. Its director is Mary C. Brown. The branch is open Monday, Wednesday–Friday 9 am–6 pm, Tuesday 9 am–8 pm, and Saturday 9 am–3 pm.
^Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.[10][11]
Union County Public Library - Website for Union County's library with links to government services and the tri-county area's library catalog.
Lake Butler Community Page a non-official 'Community Page' created by a local resident to help share information about events and more occurring in the Union County/Lake Butler area.
