Brown County is a county in west-central Texas. As of the 2020 census, the population was 38,095. Its county seat is Brownwood. The county was founded in 1856 and organized in 1858. It is named for Henry Stevenson Brown, a commander at the Battle of Velasco, an early conflict between Texians and Mexicans. The Brownwood, TX Micropolitan Statistical Area includes all of Brown County.