Ridge Farm, IL -- U.S. village in Illinois Population (2000): 912 Housing Units (2000): 388 Land area (2000): 3.127308 sq. miles (8.099691 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.127308 sq. miles (8.099691 sq. km) FIPS code: 63862 Located within: Illinois (IL), FIPS 17 Location: 39.896836 N, 87.652588 W ZIP Codes (1990): 61870 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ridge Farm, IL Ridge Farm