Hartford, WI -- U.S. city in Wisconsin Population (2000): 10905 Housing Units (2000): 4434 Land area (2000): 5.989584 sq. miles (15.512951 sq. km) Water area (2000): 0.052202 sq. miles (0.135203 sq. km) Total area (2000): 6.041786 sq. miles (15.648154 sq. km) FIPS code: 33000 Located within: Wisconsin (WI), FIPS 55 Location: 43.318361 N, 88.378808 W ZIP Codes (1990): 53027 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Hartford, WI Hartford