Darlington, WI -- U.S. city in Wisconsin Population (2000): 2418 Housing Units (2000): 1052 Land area (2000): 1.305086 sq. miles (3.380158 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.305086 sq. miles (3.380158 sq. km) FIPS code: 18875 Located within: Wisconsin (WI), FIPS 55 Location: 42.681335 N, 90.115873 W ZIP Codes (1990): 53530 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Darlington, WI Darlington