Coolville, OH -- U.S. village in Ohio Population (2000): 528 Housing Units (2000): 232 Land area (2000): 0.841988 sq. miles (2.180740 sq. km) Water area (2000): 0.025624 sq. miles (0.066366 sq. km) Total area (2000): 0.867612 sq. miles (2.247106 sq. km) FIPS code: 18588 Located within: Ohio (OH), FIPS 39 Location: 39.222197 N, 81.797639 W ZIP Codes (1990): 45723 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Coolville, OH Coolville