Johnson County, Tennessee

Johnson County is a located in the  of. As of, the population is 17,499. The 2005 Census Estimate placed the population at 18,116. It's is.

Geography
According to the, the county has a total area of 784 (303 ). 773 km² (298 sq mi) of it is land and 11 km² (4 sq mi) of it (1.41%) is water. Johnson County's boundary with Sullivan County is defined as the ridgeline of.

Adjacent Counties

 * (north)
 * (northeast)
 * (east)
 * (southeast)
 * (south)
 * (southwest)
 * (west)

Demographics
As of the of 2000, there were 17,499 people, 6,827 households, and 4,751 families residing in the county. The was 23/km² (59/sq mi). There were 7,879 housing units at an average density of 10/km² (26/sq mi). The racial makeup of the county was 96.40%, 2.42% or , 0.34% , 0.12% , 0.02% , 0.23% from , and 0.46% from two or more races. 0.86% of the population were or  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 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 for the county was $13,388. About 18.70% of families and 22.60% of the population were below the, including 26.80% of those under age 18 and 21.50% of those age 65 or over.

Interesting facts

 * 's song "" is set in Johnson County.