|Johnson County, Arkansas|
Location in the state of Arkansas
Arkansas's location in the U.S.
|Founded||November 16, 1833|
682.74 sq mi (1,768 km²)
662.17 sq mi (1,715 km²)
20.57 sq mi (53 km²), 3.01%
39/sq mi (14.89/km²)
Johnson County is a county located in the U.S. state of Arkansas originally created from a portion of Pope County. As of 2010, the population was 25,540. The county seat is Clarksville. Johnson County is Arkansas's 30th county, formed on November 16, 1833, and named for Ben Johnson, a Territorial Judge. It is an alcohol prohibition or dry county.
The Ada Mills Bridge links the Arkansas River between Johnson and Logan counties. It is named for Ada Mills, a former Republican political activist who lobbied for the structure for forty years before its completion.
According to the 2000 census, the county has a total area of 682.74 square miles (1,768.3 km2), of which 662.17 square miles (1,715.0 km2) (or 96.99%) is land and 20.57 square miles (53.3 km2) (or 3.01%) is water.
Major highways 
Adjacent counties 
- Newton County (north)
- Pope County (east)
- Logan County (south)
- Franklin County (west)
- Madison County (northwest)
National protected area 
- Ozark National Forest (part)
As of the census of 2000, there were 22,781 people, 8,738 households, and 6,238 families residing in the county. The population density was 34 people per square mile (13/km²). There were 9,926 housing units at an average density of 15 per square mile (6/km²). The racial makeup of the county was 93.69% White, 1.37% Black or African American, 0.62% Native American, 0.25% Asian, 0.01% Pacific Islander, 2.62% from other races, and 1.43% from two or more races. 6.70% of the population were Hispanic or Latino of any race.
There were 8,738 households out of which 32.40% had children under the age of 18 living with them, 58.10% were married couples living together, 9.50% had a female householder with no husband present, and 28.60% were non-families. 24.60% of all households were made up of individuals and 11.60% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.01.
In the county the population was spread out with 25.20% under the age of 18, 9.70% from 18 to 24, 27.60% from 25 to 44, 22.70% from 45 to 64, and 14.80% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 99.00 males. For every 100 females age 18 and over, there were 95.40 males.
The median income for a household in the county was $27,910, and the median income for a family was $33,630. Males had a median income of $25,779 versus $19,924 for females. The per capita income for the county was $15,097. About 12.90% of families and 16.40% of the population were below the poverty line, including 19.60% of those under age 18 and 15.30% of those age 65 or over.
Cities and towns 
Unincorporated communities 
Census designated place 
Townships in Arkansas are the divisions of a county. Each township includes unincorporated areas and some may have incorporated towns or cities within part of their space. Townships have limited purposes in modern times. However, the US Census does list Arkansas population based on townships (often referred to as "minor civil divisions"). Townships are also of value for historical purposes in terms of genealogical research. Each town or city is within one or more townships in an Arkansas county based on census maps. The townships of Johnson County are listed below with the town(s) and/or city that are fully or partially inside them listed in parentheses. 
- Grant (Coal Hill)
- Howell (most of Knoxville)
- Low Gap
- Perry (CDP Hagarville)
- Pittsburg (most of Lamar, small part of Knoxville)
- Prairie (small part of Clarksville)
- Red Lick
- Spadra (most of Clarksville, small part of Lamar)
- Ward (Hartman)
See also 
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "Ada Mills". The Johnson County (Arkansas) Graphic," October 2001. Retrieved September 8, 2010.
- "Census 2000 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-02-13.
- Based on 2000 census data
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- US Census Bureau. 2011 Boundary and Annexation Survey (BAS): Johnson County, AR (Map). http://www2.census.gov/geo/pvs/bas/bas11/st05_ar/cou/c05071_johnson/BAS11C20507100000_000.pdf. Retrieved 20110818.
||Madison County||Newton County|
|Franklin County||Pope County|
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