62022 -- U.S. ZIP code Municipality (1990): DOW, Illinois All ZIPs for this municipality (1990): 62022 Population (2000): 962 Housing Units (2000): 381 Land area (2000): 17.512433 sq. miles (45.356992 sq. km) Water area (2000): 0.001192 sq. miles (0.003086 sq. km) Total area (2000): 17.513625 sq. miles (45.360078 sq. km) Located within: Illinois (IL) Location: 38.997296 N, 90.340506 W