Lago Vista, TX -- U.S. city in Texas Population (2000): 4507 Housing Units (2000): 2155 Land area (2000): 8.712255 sq. miles (22.564636 sq. km) Water area (2000): 0.645526 sq. miles (1.671904 sq. km) Total area (2000): 9.357781 sq. miles (24.236540 sq. km) FIPS code: 40264 Located within: Texas (TX), FIPS 48 Location: 30.449589 N, 97.996151 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lago Vista, TX Lago Vista