62044 -- U.S. ZIP code Municipality (1990): GREENFIELD, Illinois All ZIPs for this municipality (1990): 62044 Population (2000): 2088 Housing Units (2000): 885 Land area (2000): 89.396899 sq. miles (231.536896 sq. km) Water area (2000): 0.174181 sq. miles (0.451127 sq. km) Total area (2000): 89.571080 sq. miles (231.988023 sq. km) Located within: Illinois (IL) Location: 39.362285 N, 90.221471 W