San Augustine County, Texas

San Augustine County, Texas
The San Augustine County Courthouse
Location within the U.S. state of Texas
Coordinates: 31°24′N 94°11′W / 31.4°N 94.18°W / 31.4; -94.18
Country United States
State Texas
Founded1837
Named afterPresidio de San Agustín de Ahumada, named for Agustín de Ahumada, 2nd Marquess of Amarillas
SeatSan Augustine
Largest citySan Augustine
Area
 • Total
592 sq mi (1,530 km2)
 • Land531 sq mi (1,380 km2)
 • Water62 sq mi (160 km2)  10%
Population
 (2020)
 • Total
7,918
 • Density14.9/sq mi (5.76/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district1st
Websitewww.co.san-augustine.tx.us

San Augustine County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 7,918. Its county seat is San Augustine.