62021 -- U.S. ZIP code Municipality (1990): DORSEY, Illinois All ZIPs for this municipality (1990): 62021 Population (2000): 965 Housing Units (2000): 389 Land area (2000): 20.798985 sq. miles (53.869121 sq. km) Water area (2000): 0.041086 sq. miles (0.106413 sq. km) Total area (2000): 20.840071 sq. miles (53.975534 sq. km) Located within: Illinois (IL) Location: 38.976011 N, 89.974610 W