About This Place
San Augustine is a city in San Augustine County, Texas, United States. The population was 2,475 at the 2000 census. It is the county seat of San Augustine County and is situated in East Texas.
San Augustine is located at 31°31′52″N 94°06′39″W / 31.531086°N 94.110971°W / 31.531086; -94.110971 (31.531086, -94.110971).
According to the United States Census Bureau, the city has a total area of 4.8 square miles (12.5 km2), of which, 4.7 square miles (12.2 km2) of it is land and 0.1 square miles (0.3 km2) of it (2.08%) is water.