Sandusky is a city in the U.S. state of Michigan. As of the 2000 census, the city population was 2,745 with an estimate of 2,685 in 2006. It is the county seat of Sanilac County.
As of the census of 2000, there were 2,745 people, 1,081 households, and 649 families residing in the city. The population density was 1,446.3 per square mile (557.8/km²). There were 1,168 housing units at an average density of 615.4 per square mile (237.4/km²). The racial makeup of the city was 95.12% White, 0.87% African American, 0.15% Native American, 1.75% Asian, 1.35% from other races, and 0.77% from two or more races. Hispanic or Latino of any race were 3.42% of the population.
There were 1,081 households out of which 31.2% had children under the age of 18 living with them, 43.6% were married couples living together, 13.0% had a female householder with no husband present, and 39.9% were non-families. 35.9% of all households were made up of individuals and 16.7% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.97.