|Johnson County, Texas|
The Johnson County Courthouse in 2009
Location in the U.S. state of Texas
Texas's location in the U.S.
|• Total||734 sq mi (1,901 km2)|
|• Land||725 sq mi (1,878 km2)|
|• Water||9.8 sq mi (25 km2), 1.3%|
|• ( 2010)||150,934|
|• Density||208/sq mi (80/km2)|
|Time zone||Central: UTC−6/ −5|
Johnson County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 150,934.  Its county seat is Cleburne.  Johnson County is named for Middleton Johnson, a Texas Ranger, soldier, and politician.
The first settler of Johnson county was Henry Briden, who built a log cabin on the Nolan River. His log cabin still exists, and it can be seen along State Highway 174 in Rio Vista, Texas. The first county seat was Wardville, located under the waters of the present Lake Pat Cleburne. In 1856 Buchanan became the county seat. Johnson County was divided in 1867, the western half becoming Hood County. Camp Henderson became the new county seat and was renamed Cleburne in honor of Confederate General Patrick Cleburne.
- Interstate 35W
- U.S. Highway 67
- U.S. Highway 287
- U.S. Highway 377
- State Highway 81
- State Highway 171
- State Highway 174
|U.S. Decennial Census
1850–2010  2010–2014 
As of the census  of 2000, there were 126,811 people, 43,636 households, and 34,428 families residing in the county. The population density was 174 people per square mile (67/km²). There were 46,269 housing units at an average density of 63 per square mile (24/km²). The racial makeup of the county was 90.01% White, 2.50% Black or African American, 0.64% Native American, 0.52% Asian, 0.18% Pacific Islander, 4.52% from other races, and 1.63% from two or more races. 12.12% of the population were Hispanic or Latino of any race.
There were 43,636 households out of which 39.50% had children under the age of 18 living with them, 64.70% were married couples living together, 10.00% had a female householder with no husband present, and 21.10% were non-families. 17.30% of all households were made up of individuals and 6.90% had someone living alone who was 65 years of age or older. The average household size was 2.85 and the average family size was 3.20. As of the 2010 census, there were about 3.6 same-sex couples per 1,000 households in the county. 
In the county, the population was spread out with 28.80% under the age of 18, 8.80% from 18 to 24, 30.20% from 25 to 44, 22.30% from 45 to 64, and 10.00% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 99.70 males. For every 100 females age 18 and over, there were 97.10 males.
The median income for a household in the county was $44,621, and the median income for a family was $49,963. Males had a median income of $36,718 versus $25,149 for females. The per capita income for the county was $18,400. About 6.90% of families and 8.80% of the population were below the poverty line, including 10.60% of those under age 18 and 10.90% of those age 65 or over.
Southwestern Adventist University, a private liberal arts university in Keene, is currently the only four-year institution of higher learning in Johnson County. Southwestern is affiliated with the Seventh-day Adventist Church. Hill College a college in Hillsboro, a town in neighboring Hill County also provides tertiary education, with a campus in Cleburne since 1971.
Johnson County is part of the Dallas/ Fort Worth Television media market in North Central Texas. Local News media outlets are: KDFW-TV, KXAS-TV, WFAA-TV, KTVT-TV, KERA-TV, KTXA-TV, KDFI-TV, KDAF-TV, KFWD-TV, and KDTX-TV. KCLE is the local radio station, which offers local news in addition to its country music format. The local newspapers are the Cleburne Times-Review, Burleson Star, Joshua Star, and Johnson County Observer. County Website for the area is http://www.johnsoncountytx.org. County phone number is 817-202-4000.
- Burleson (small part in Tarrant County)
- Cresson (partly in Hood and Parker counties)
- Crowley (mostly in Tarrant County)
- Mansfield (mostly in Tarrant County and a small part in Ellis County)
- Johnson County Courthouse
- List of museums in North Texas
- National Register of Historic Places listings in Johnson County, Texas
- Recorded Texas Historic Landmarks in Johnson County
- DeWayne Burns, state representative from Johnson and Bosque counties, effective 2015
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 12, 2011. Retrieved December 18, 2013.
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on April 19, 2015. Retrieved May 2, 2015.
- "Population and Housing Unit Estimates". Archived from the original on May 29, 2017. Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved May 2, 2015.
- "Texas Almanac: Population History of Counties from 1850–2010" (PDF). Texas Almanac. Archived (PDF) from the original on February 26, 2015. Retrieved May 2, 2015.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2011-05-14.
- Leonhardt, David; Quealy, Kevin (June 26, 2015), "Where Same-Sex Couples Live", The New York Times, archived from the original on June 29, 2015, retrieved July 6, 2015
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Archived from the original on 23 March 2018. Retrieved 7 May 2018.
Media related to Johnson County, Texas at Wikimedia Commons
- Official Johnson County, Texas website
- Johnson County in Handbook of Texas Online at the University of Texas