Massillon, OH -- U.S. city in Ohio Population (2000): 31325 Housing Units (2000): 13567 Land area (2000): 16.748957 sq. miles (43.379598 sq. km) Water area (2000): 0.144455 sq. miles (0.374136 sq. km) Total area (2000): 16.893412 sq. miles (43.753734 sq. km) FIPS code: 48244 Located within: Ohio (OH), FIPS 39 Location: 40.795270 N, 81.522896 W ZIP Codes (1990): 44646 44647 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Massillon, OH Massillon