San Antonio, FL -- U.S. city in Florida Population (2000): 655 Housing Units (2000): 286 Land area (2000): 1.230653 sq. miles (3.187376 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.230653 sq. miles (3.187376 sq. km) FIPS code: 63375 Located within: Florida (FL), FIPS 12 Location: 28.336649 N, 82.275011 W ZIP Codes (1990): 33576 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: San Antonio, FL San Antonio