Vassar is a city in Tuscola County in the U.S. state of Michigan.

The city is located on the western edge of Vassar Township but is administratively autonomous.

Vassar was founded by four men who were led by James M. Edmunds and Townsend North in search of an area to build a dam and start a city.

Vassar's growth for the next thirty years was based mainly on its lumbering and a handful of related industries.

Vassar was the crossing of the Michigan Central's Bay City Branch (from Detroit) and the Port Huron & Northwestern (from 1900 Pere Marquette) line running between Saginaw and Port Huron via Marlette.

[5] The voters of the Village of Vassar elected to become a city on September 28, 1944.

28.2% of all households were made up of individuals, and 11.2% had someone living alone who was 65 years of age or older.

28.8% of all households were made up of individuals, and 12.6% had someone living alone who was 65 years of age or older.