Preble -- U.S. County in Ohio Population (2000): 42337 Housing Units (2000): 17186 Land area (2000): 424.804830 sq. miles (1100.239413 sq. km) Water area (2000): 1.521332 sq. miles (3.940231 sq. km) Total area (2000): 426.326162 sq. miles (1104.179644 sq. km) Located within: Ohio (OH), FIPS 39 Location: 39.743860 N, 84.637188 W Headwords: Preble Preble, OH Preble County Preble County, OH