Johnson County, Tennessee
|Johnson County, Tennessee|
Johnson County Courthouse in Mountain City
Location in the state of Tennessee
Tennessee's location in the U.S.
|Named for||Thomas Johnson, early settler|
|Largest city||Mountain City|
303 sq mi (784 km²)
298 sq mi (773 km²)
4 sq mi (11 km²), 1.41%
59/sq mi (23/km²)
|Time zone||Eastern: UTC-5/-4|
Johnson County is a county located in the U.S. state of Tennessee. As of 2000, the population was 17,499. The 2005 Census Estimate placed the population at 18,116 . Its county seat is Mountain City.
According to the U.S. Census Bureau, the county has a total area of 303 square miles (784.8 km2), of which 298 square miles (771.8 km2) is land and 4 square miles (10.4 km2) (1.41%) is water. Johnson County's boundary with Sullivan County is defined as the ridgeline of Holston Mountain.
Adjacent counties 
- Washington County, Virginia (north)
- Grayson County, Virginia (northeast)
- Ashe County, North Carolina (east)
- Watauga County, North Carolina (southeast)
- Avery County, North Carolina (south)
- Carter County (southwest)
- Sullivan County (west)
National protected area 
- Cherokee National Forest (part)
As of the census of 2000, there were 17,499 people, 6,827 households, and 4,751 families residing in the county. The population density was 59 people per square mile (23/km²). There were 7,879 housing units at an average density of 26 per square mile (10/km²). The racial makeup of the county was 96.40% White, 2.42% Black or African American, 0.34% Native American, 0.12% Asian, 0.02% Pacific Islander, 0.23% from other races, and 0.46% from two or more races. 0.86% of the population were Hispanic or Latino of any race.
There were 6,827 households out of which 26.40% had children under the age of 18 living with them, 55.40% were married couples living together, 10.00% had a female householder with no husband present, and 30.40% were non-families. 26.40% of all households were made up of individuals and 11.50% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.81.
In the county, the population was spread out with 19.70% under the age of 18, 7.40% from 18 to 24, 30.80% from 25 to 44, 27.10% from 45 to 64, and 15.00% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 114.60 males. For every 100 females age 18 and over, there were 114.40 males.
The median income for a household in the county was $23,067, and the median income for a family was $28,400. Males had a median income of $24,018 versus $18,817 for females. The per capita income for the county was $13,388. About 18.70% of families and 22.60% of the population were below the poverty line, including 26.80% of those under age 18 and 21.50% of those age 65 or over.
Presidential elections 
The county is historically Republican and is located within Tennessee's 1st congressional district, which has not been represented by a Democrat in over 120 years. It reportedly was the strongest county for Calvin Coolidge in 1924, Herbert Hoover in 1932 and Alf Landon in 1936 The Republican candidate has continued to consistently win since 1956. Since 1992 no Republican candidate has received less than 57% of the county's vote and in 2008 John McCain received 70.1%.
Populated places 
Cities and towns 
Unincorporated communities 
Interesting facts 
- Johnson County is the setting for the Steve Earle song "Copperhead Road" and features in Cormac McCarthy's book Outer Dark.
- Johnson County, and more specifically the community of Pandora, was the site of the arrest of Tom Dula
- The community of Butler was the only town completely inundated by flood waters of the TVA system of dams
See also 
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Based on 2000 census data
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- Census Bureau Data Sets  The Correctional Complex comprises census block 1020, block group 1, census tract 9561. Use table P37 on the SF 1 data set.
- David Leip's Presidential Atlas: Statistics for 1924
- David Leip's Presidential Atlas: Statistics for 1932
- David Leip's Presidential Atlas: Statistics for 1936
- David Leip's Presidential Atlas: Statistics for 1956
- David Leip's Presidential Election Atlas (Election maps for Tennessee)
- The New York Times electoral map (Zoom in on Tennessee)
||Washington County, Virginia||Grayson County, Virginia|
|Sullivan County||Ashe County, North Carolina|
|Carter County||Avery County, North Carolina||Watauga County, North Carolina|