61075 -- U.S. ZIP code Municipality (1990): SCALES MOUND, Illinois All ZIPs for this municipality (1990): 61075 Population (2000): 1039 Housing Units (2000): 468 Land area (2000): 51.467269 sq. miles (133.299610 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 51.467269 sq. miles (133.299610 sq. km) Located within: Illinois (IL) Location: 42.473737 N, 90.253627 W