Crystal City, TX -- U.S. city in Texas Population (2000): 7190 Housing Units (2000): 2500 Land area (2000): 3.642229 sq. miles (9.433330 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.642229 sq. miles (9.433330 sq. km) FIPS code: 18020 Located within: Texas (TX), FIPS 48 Location: 28.684412 N, 99.827851 W ZIP Codes (1990): 78839 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Crystal City, TX Crystal City