61331 -- U.S. ZIP code Population (2000): 51 Housing Units (2000): 25 Land area (2000): 0.180223 sq. miles (0.466776 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.180223 sq. miles (0.466776 sq. km) Located within: Illinois (IL) Location: 41.747471 N, 89.277130 W