|Atascosa County, Texas|
The Atascosa County Courthouse in Jourdanton
Location within the U.S. state of Texas
Texas's location within the U.S.
|Named for||Atascosa River|
|• Total||1,221 sq mi (3,162 km2)|
|• Land||1,210 sq mi (3,134 km2)|
|• Water||1.9 sq mi (5 km2), 0.2%|
|• ( 2010)||44,911|
|• Density||37/sq mi (14/km2)|
|Time zone||Central: UTC−6/ −5|
Atascosa County is a county located in the U.S. state of Texas. As of the 2010 census, the population was 44,911.  Its county seat is Jourdanton.  The county was formed in 1856 from Bexar County and is named for the Atascosa River.
- Interstate 35
- Interstate 37
- U.S. Highway 281
Alt. US 281
- State Highway 16
- State Highway 85
- State Highway 97
- Bexar County (north)
- Wilson County (northeast)
- Karnes County (east)
- Live Oak County (southeast)
- McMullen County (south)
- La Salle County (southwest)
- Frio County (west)
- Medina County (northwest)
|U.S. Decennial Census
1850–2010  2010–2014 
As of the 2010 United States Census, there were 44,911 people residing in the county. 84.9% were White, 0.8% Black or African American, 0.8% Native American, 0.3% Asian, 0.1% Pacific Islander, 10.9% of some other race and 2.3% of two or more races. 61.9% were Hispanic or Latino (of any race).
As of the census  of 2000, there were 38,628 people, 12,816 households, and 10,022 families residing in the county. The population density was 31 people per square mile (12/km²). There were 14,883 housing units at an average density of 12 per square mile (5/km²). The racial makeup of the county was 73.23% White, 0.60% Black or African American, 0.80% Native American, 0.31% Asian, 0.06% Pacific Islander, 21.53% from other races, and 3.47% from two or more races. 58.56% of the population were Hispanic or Latino of any race.
There were 12,816 households out of which 41.70% had children under the age of 18 living with them, 60.30% were married couples living together, 13.00% had a female householder with no husband present, and 21.80% were non-families. 18.90% of all households were made up of individuals and 8.70% had someone living alone who was 65 years of age or older. The average household size was 2.99 and the average family size was 3.41.
In the county, the population was spread out with 31.70% under the age of 18, 8.90% from 18 to 24, 27.60% from 25 to 44, 21.00% from 45 to 64, and 10.80% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 96.60 males. For every 100 females age 18 and over, there were 94.20 males.
The median income for a household in the county was $33,081, and the median income for a family was $37,705. Males had a median income of $27,702 versus $18,810 for females. The per capita income for the county was $14,276. About 16.10% of families and 20.20% of the population were below the poverty line, including 25.60% of those under age 18 and 21.70% of those age 65 or over.
The following school districts serve Atascosa County:
- Charlotte Independent School District (partially)
- Jourdanton Independent School District
- Karnes City Independent School District (partially)
- Lytle Independent School District (partially)
- Pleasanton Independent School District
- Poteet Independent School District
- Somerset Independent School District (partially)
Atascosa County has long been cattle country
Replica of the original Atascosa County log courthouse in Jourdanton
Sign at Trinity Baptist Church in Lytle
- National Register of Historic Places listings in Atascosa County, Texas
- Recorded Texas Historic Landmarks in Atascosa County
- "State & County QuickFacts". United States Census Bureau. Retrieved December 8, 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. Retrieved April 18, 2015.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved April 18, 2015.
- "Texas Almanac: Population History of Counties from 1850–2010" (PDF). Texas Almanac. Retrieved April 18, 2015.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2011-05-14.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-07-19.
|Wikimedia Commons has media related to Atascosa County, Texas.|
- Atascosa County Government
- Atascosa County, Texas from the Handbook of Texas Online
- Atascosa County from the Texas Almanac
- Atascosa County from the TXGenWeb Project
- "Atascosa County Profile" from the Texas Association of Counties