Watertown Township is a civil township of Tuscola County in the U.S. state of Michigan. The population was 2,091 at the 2020 census.
Communities
- Fostoria is an unincorporated community in the southeast part of the township at . 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 here. It was named for Crapo's foreman, Thomas Foster in 1881 and had a post office from July 1882 until May 1883. Fostoria and the surrounding area is currently served by the ZIP code 48435, which also serves a large portion of the southeast portion of Watertown Township, as well as portions of three townships in adjacent Lapeer County: Rich Township to the east, Deerfield Township to the southeast, and Marathon Township to the south.
- Otter Lake is a village to the south straddling the boundary of Genesee County and Lapeer County; the Otter Lake ZIP code 48464 serves a portion of the southern part of Watertown Township.
- Mayville is to the north within Fremont Township; the Mayville ZIP code 48744 serves the northeast part of Watertown Township.
- Millington is to the west within Millington Township; the Millington ZIP code 48746 serves the western portion of Watertown Township.
Geography
According to the United States Census Bureau, the township has a total area of 32.9 square miles (85.2 km), of which 32.7 square miles (84.6 km) is land and 0.2 square mile (0.6 km) (0.76%) is water.
Demographics
As of the census