Harmon, IL -- U.S. village in Illinois Population (2000): 149 Housing Units (2000): 62 Land area (2000): 0.141939 sq. miles (0.367620 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.141939 sq. miles (0.367620 sq. km) FIPS code: 32967 Located within: Illinois (IL), FIPS 17 Location: 41.720660 N, 89.555298 W ZIP Codes (1990): 61042 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Harmon, IL Harmon