Custer Township is a civil township of Sanilac County in the U.S. state of Michigan. The population was 893 at the 2020 census.

Communities

  • Sandusky is a city on the southern boundary of the township at the junction of M-19 and M-46, but is administratively autonomous. The Sandusky ZIP code 48471 serves most of the township.

The postal delivery areas of some other nearby communities serve the township:

  • Carsonville is a village to the southeast, and the Carsonville ZIP code 48419 serves a small area in the southeast corner of the township.
  • Deckerville is a village to the northeast, and the Deckerville ZIP code 48427 serves and area in northeast part of the township.
  • Snover is an unincorporated community to the west, and the Snover ZIP code 48472 serves a small area in the northwest corner of the township.

Geography

According to the United States Census Bureau, the township has a total area of , of which is land and 0.03% is water.

Demographics

As of the census