Gratiot -- U.S. County in Michigan Population (2000): 42285 Housing Units (2000): 15516 Land area (2000): 570.128367 sq. miles (1476.625630 sq. km) Water area (2000): 1.480413 sq. miles (3.834251 sq. km) Total area (2000): 571.608780 sq. miles (1480.459881 sq. km) Located within: Michigan (MI), FIPS 26 Location: 43.303734 N, 84.615514 W Headwords: Gratiot Gratiot, MI Gratiot County Gratiot County, MI