Petersburg, TX -- U.S. city in Texas Population (2000): 1262 Housing Units (2000): 498 Land area (2000): 0.801391 sq. miles (2.075594 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.801391 sq. miles (2.075594 sq. km) FIPS code: 56996 Located within: Texas (TX), FIPS 48 Location: 33.869948 N, 101.597208 W ZIP Codes (1990): 79250 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Petersburg, TX Petersburg