Newark, OH -- U.S. city in Ohio Population (2000): 46279 Housing Units (2000): 20625 Land area (2000): 19.553834 sq. miles (50.644196 sq. km) Water area (2000): 0.244751 sq. miles (0.633901 sq. km) Total area (2000): 19.798585 sq. miles (51.278097 sq. km) FIPS code: 54040 Located within: Ohio (OH), FIPS 39 Location: 40.063014 N, 82.416779 W ZIP Codes (1990): 43055 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Newark, OH Newark