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Johnson County, Arkansas facts for kids

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Not to be confused with Johnson, Arkansas.
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Johnson County
Courthouse in Clarksville
Courthouse in Clarksville
Map of Arkansas highlighting Johnson County
Location within the U.S. state of Arkansas
Map of the United States highlighting Arkansas
Arkansas's location within the U.S.
Country  United States
State  Arkansas
Founded November 16, 1833
Seat Clarksville
 • Total 683 sq mi (1,770 km2)
 • Land 660 sq mi (1,700 km2)
 • Water 23 sq mi (60 km2)  3.4%%
 • Estimate 
 • Density 39/sq mi (15/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 4th

Johnson County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 25,540. The county seat is Clarksville. Johnson County is Arkansas's 30th county, formed on November 16, 1833, from a portion of Pope County and named for Benjamin 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.

The notorious bandit Bill Doolin, the founder of the Wild Bunch, was born in Johnson County in 1858 and shot to death on capture in Oklahoma in 1896.


According to the U.S. Census Bureau, the county has a total area of 683 square miles (1,770 km2), of which 660 square miles (1,700 km2) is land and 23 square miles (60 km2) (3.4%) is water.

Major highways

  • I-40 (AR).svg Interstate 40
  • US 64.svg U.S. Highway 64
  • Arkansas 21.svg Highway 21
  • Arkansas 103.svg Highway 103
  • Arkansas 123.svg Highway 123 Hwy 109

Adjacent counties

National protected area


Historical population
Census Pop.
1840 3,433
1850 5,227 52.3%
1860 7,612 45.6%
1870 9,152 20.2%
1880 11,565 26.4%
1890 16,758 44.9%
1900 17,448 4.1%
1910 19,698 12.9%
1920 21,062 6.9%
1930 19,289 −8.4%
1940 18,795 −2.6%
1950 16,138 −14.1%
1960 12,421 −23.0%
1970 13,630 9.7%
1980 17,423 27.8%
1990 18,221 4.6%
2000 22,781 25.0%
2010 25,540 12.1%
Est. 2015 26,141 2.4%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2015
USA Johnson County, Arkansas age pyramid
Age pyramid Johnson County

As of the 2000 United States Census, 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.



Unincorporated communities

Census-designated place


Johnson County Arkansas 2010 Township Map large
Townships in Johnson County, Arkansas as of 2010

Townships in Arkansas are the divisions of a county. Each township includes unincorporated areas; some may have incorporated cities or towns within part of their boundaries. Arkansas townships have limited purposes in modern times. However, the United States Census does list Arkansas population based on townships (sometimes referred to as "county subdivisions" or "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 and publications. The townships of Johnson County are listed below; listed in parentheses are the cities, towns, and/or census-designated places that are fully or partially inside the township.

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