San Benito, TX -- U.S. city in Texas Population (2000): 23444 Housing Units (2000): 9120 Land area (2000): 11.005460 sq. miles (28.504009 sq. km) Water area (2000): 0.208006 sq. miles (0.538733 sq. km) Total area (2000): 11.213466 sq. miles (29.042742 sq. km) FIPS code: 65036 Located within: Texas (TX), FIPS 48 Location: 26.136603 N, 97.635878 W ZIP Codes (1990): 78586 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: San Benito, TX San Benito