Wilsonville, IL -- U.S. village in Illinois Population (2000): 604 Housing Units (2000): 273 Land area (2000): 0.953631 sq. miles (2.469893 sq. km) Water area (2000): 0.024289 sq. miles (0.062909 sq. km) Total area (2000): 0.977920 sq. miles (2.532802 sq. km) FIPS code: 82218 Located within: Illinois (IL), FIPS 17 Location: 39.070124 N, 89.854243 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Wilsonville, IL Wilsonville