Delaware City, DE -- U.S. city in Delaware Population (2000): 1453 Housing Units (2000): 616 Land area (2000): 1.256561 sq. miles (3.254477 sq. km) Water area (2000): 0.077599 sq. miles (0.200981 sq. km) Total area (2000): 1.334160 sq. miles (3.455458 sq. km) FIPS code: 19730 Located within: Delaware (DE), FIPS 10 Location: 39.574704 N, 75.593631 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Delaware City, DE Delaware City