Rancho Viejo, TX -- U.S. town in Texas Population (2000): 1754 Housing Units (2000): 1160 Land area (2000): 2.106634 sq. miles (5.456156 sq. km) Water area (2000): 0.161628 sq. miles (0.418615 sq. km) Total area (2000): 2.268262 sq. miles (5.874771 sq. km) FIPS code: 60544 Located within: Texas (TX), FIPS 48 Location: 26.038219 N, 97.554392 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Rancho Viejo, TX Rancho Viejo