Osceola -- U.S. County in Michigan Population (2000): 23197 Housing Units (2000): 12853 Land area (2000): 565.981940 sq. miles (1465.886433 sq. km) Water area (2000): 7.122688 sq. miles (18.447676 sq. km) Total area (2000): 573.104628 sq. miles (1484.334109 sq. km) Located within: Michigan (MI), FIPS 26 Location: 43.982299 N, 85.346103 W Headwords: Osceola Osceola, MI Osceola County Osceola County, MI