61479 -- U.S. ZIP code Municipality (1990): SPEER, Illinois All ZIPs for this municipality (1990): 61479 Population (2000): 169 Housing Units (2000): 69 Land area (2000): 13.177650 sq. miles (34.129956 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 13.177650 sq. miles (34.129956 sq. km) Located within: Illinois (IL) Location: 40.999497 N, 89.654296 W