Houston, DE -- U.S. town in Delaware Population (2000): 430 Housing Units (2000): 166 Land area (2000): 0.375728 sq. miles (0.973131 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.375728 sq. miles (0.973131 sq. km) FIPS code: 36760 Located within: Delaware (DE), FIPS 10 Location: 38.917365 N, 75.507003 W ZIP Codes (1990): 19954 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Houston, DE Houston