San Patricio -- U.S. County in Texas Population (2000): 67138 Housing Units (2000): 24864 Land area (2000): 691.651264 sq. miles (1791.368475 sq. km) Water area (2000): 15.410013 sq. miles (39.911748 sq. km) Total area (2000): 707.061277 sq. miles (1831.280223 sq. km) Located within: Texas (TX), FIPS 48 Location: 27.976423 N, 97.464882 W Headwords: San Patricio San Patricio, TX San Patricio County San Patricio County, TX