Marshall, TX -- U.S. city in Texas Population (2000): 23935 Housing Units (2000): 9923 Land area (2000): 29.566284 sq. miles (76.576321 sq. km) Water area (2000): 0.077932 sq. miles (0.201843 sq. km) Total area (2000): 29.644216 sq. miles (76.778164 sq. km) FIPS code: 46776 Located within: Texas (TX), FIPS 48 Location: 32.542897 N, 94.363727 W ZIP Codes (1990): 75670 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marshall, TX Marshall