62956 -- U.S. ZIP code Municipality (1990): KARNAK, Illinois All ZIPs for this municipality (1990): 62956 Population (2000): 989 Housing Units (2000): 465 Land area (2000): 24.011013 sq. miles (62.188236 sq. km) Water area (2000): 0.026521 sq. miles (0.068688 sq. km) Total area (2000): 24.037534 sq. miles (62.256924 sq. km) Located within: Illinois (IL) Location: 37.279433 N, 88.939595 W