Vassar is a city located in Tuscola County, Michigan. As of the 2000 census, the city had a total population of 2,823. The city is located on the western edge of Vassar Township. Vassar is the only CITY located in Tuscola County, Michigan.
According to the United States Census Bureau, the city has a total area of 5.8 km2 (2.2 mi2). 5.8 km2 (2.2 mi2) of it is land and none of it is covered by water.