Post, TX -- U.S. city in Texas Population (2000): 3708 Housing Units (2000): 1419 Land area (2000): 3.750179 sq. miles (9.712918 sq. km) Water area (2000): 0.019131 sq. miles (0.049548 sq. km) Total area (2000): 3.769310 sq. miles (9.762466 sq. km) FIPS code: 59012 Located within: Texas (TX), FIPS 48 Location: 33.191789 N, 101.380432 W ZIP Codes (1990): 79356 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Post, TX Post