Macomb -- U.S. County in Michigan Population (2000): 788149 Housing Units (2000): 320276 Land area (2000): 480.438452 sq. miles (1244.329825 sq. km) Water area (2000): 89.341226 sq. miles (231.392703 sq. km) Total area (2000): 569.779678 sq. miles (1475.722528 sq. km) Located within: Michigan (MI), FIPS 26 Location: 42.591138 N, 82.951762 W Headwords: Macomb Macomb, MI Macomb County Macomb County, MI