San Augustine -- U.S. County in Texas Population (2000): 8946 Housing Units (2000): 5356 Land area (2000): 527.874252 sq. miles (1367.187977 sq. km) Water area (2000): 64.335889 sq. miles (166.629181 sq. km) Total area (2000): 592.210141 sq. miles (1533.817158 sq. km) Located within: Texas (TX), FIPS 48 Location: 31.391082 N, 94.155283 W Headwords: San Augustine San Augustine, TX San Augustine County San Augustine County, TX