East Troy, WI -- U.S. village in Wisconsin Population (2000): 3564 Housing Units (2000): 1396 Land area (2000): 3.612422 sq. miles (9.356130 sq. km) Water area (2000): 0.046385 sq. miles (0.120137 sq. km) Total area (2000): 3.658807 sq. miles (9.476267 sq. km) FIPS code: 22100 Located within: Wisconsin (WI), FIPS 55 Location: 42.786753 N, 88.403594 W ZIP Codes (1990): 53120 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: East Troy, WI East Troy