Isabella -- U.S. County in Michigan Population (2000): 63351 Housing Units (2000): 24528 Land area (2000): 574.272648 sq. miles (1487.359266 sq. km) Water area (2000): 3.477592 sq. miles (9.006922 sq. km) Total area (2000): 577.750240 sq. miles (1496.366188 sq. km) Located within: Michigan (MI), FIPS 26 Location: 43.632901 N, 84.838367 W Headwords: Isabella Isabella, MI Isabella County Isabella County, MI