Fostoria is an unincorporated community and census-designated place in Watertown Township, Tuscola County, Michigan, United States.

[3] Fostoria has a post office with ZIP code 48435.

[3] Michigan Governor Henry H. Crapo once owned most of the pine forestland in the area and had a line of the Pere Marquette Railway run through Fostoria.

The community was named in 1881 for Crapo's foreman, Thomas Foster.

This Tuscola County, Michigan location article is a stub.