Classification: County
Located in: Ohio (OH)
Total Population (2000): 40543
Total Housing Units (2000): 16577
Land Area (square meters): 1064172782
Water Area (square meters): 3640434
Land Area (square miles): 410.879426
Water Area (square miles): 1.405579
Latitude (decimal degrees): 39.419135
Longitude (decimal degrees): -83.828623
FIPS Code: 39
Place FIPS Code: 27