Atascosa is an unincorporated community located in Southwest Bexar County, Texas, United States. Atascosa is 14 miles southwest of Downtown San Antonio. It is located between Von Ormy and Lytle off I-35. It is often confused with nearby Atascosa County. The community is part of the San Antonio Metropolitan Statistical Area.
The Atascosa post office (78002) opened in 1872 and is located today on Old Pearsall Road at Jarratt Road. In 1885 the community had a Baptist church, a district school, a general store, a saloon, two blacksmiths, and a population of 180. A coal mine was in operation by 1900.
Atascosa is included in the Southwest Independent School District. McNair Middle School and Elm Creek Elementary are located in Atascosa off Old Pearsall Road. The high school serving Atascosa is Southwest High School (San Antonio, Texas).
According to the National Agricultural Statistics Service 2007 census, there are more than 70 crop operations in Atascosa with 3 operations that are valued more than $250,000 each. There are more than 125 animal operations in Atascosa zip code of 78002. Many people in the area raise cattle, horses, goats, pigs, peacocks, and other poultry.
As of the 2010 U.S. Census, there were 8,735 people residing in this town. The population density was 208 people per square mile. The racial makeup of this area is 63.66% White, 0.54% African American, 0.63% Native American, 0.42% Asian, 0.11% Pacific Islander, 34.63% from other races. The Hispanic population is 7,167 which is 82.05% of the total Atascosa population.
Electricity is provided to area by CPS Energy. The water is supplied by Atascosa Rural Water Supply located off Jarratt Road and Pearsall.
Atascosa is located at  and is 41.97 square miles.