Sanilac -- U.S. County in Michigan Population (2000): 44547 Housing Units (2000): 21314 Land area (2000): 963.798404 sq. miles (2496.226301 sq. km) Water area (2000): 626.420981 sq. miles (1622.422823 sq. km) Total area (2000): 1590.219385 sq. miles (4118.649124 sq. km) Located within: Michigan (MI), FIPS 26 Location: 43.383201 N, 82.764429 W Headwords: Sanilac Sanilac, MI Sanilac County Sanilac County, MI