62419 -- U.S. ZIP code Municipality (1990): CALHOUN, Illinois All ZIPs for this municipality (1990): 62419 Population (2000): 417 Housing Units (2000): 172 Land area (2000): 22.148324 sq. miles (57.363893 sq. km) Water area (2000): 0.007949 sq. miles (0.020589 sq. km) Total area (2000): 22.156273 sq. miles (57.384482 sq. km) Located within: Illinois (IL) Location: 38.625864 N, 87.994072 W