Lake Zurich, IL -- U.S. village in Illinois Population (2000): 18104 Housing Units (2000): 5828 Land area (2000): 6.483602 sq. miles (16.792451 sq. km) Water area (2000): 0.358718 sq. miles (0.929076 sq. km) Total area (2000): 6.842320 sq. miles (17.721527 sq. km) FIPS code: 41742 Located within: Illinois (IL), FIPS 17 Location: 42.192324 N, 88.088098 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lake Zurich, IL Lake Zurich