Sandusky is a city in the U.S. state of Michigan. As of the 2000 census, the city had a total population of 2,745. It is the county seat of Sanilac County6.
According to the United States Census Bureau, the city has a total area of 4.9 km2 (1.9 mi2). 4.9 km2 (1.9 mi2) of it is land and none of it is covered by water.