Grey Forest, TX -- U.S. city in Texas Population (2000): 418 Housing Units (2000): 211 Land area (2000): 0.738684 sq. miles (1.913182 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.738684 sq. miles (1.913182 sq. km) FIPS code: 31100 Located within: Texas (TX), FIPS 48 Location: 29.616828 N, 98.684635 W ZIP Codes (1990): 78023 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Grey Forest, TX Grey Forest