Eaton Rapids Township is a civil township of Eaton County in the U.S. state of Michigan. The population was 3,991 at the 2020 United States census.

Communities

  • Kingsland is a small community 3 miles (5 km) ESE of Potterville.
  • Petrieville is a small community 2 miles (3 km) NE of Eaton Rapids.
  • The City of Eaton Rapids is located south of the township and is administratively autonomous.

Geography

According to the US Census Bureau, the township has a total area of , of which is land and (0.58%) is water.

Demographics

As of the 2000 United States census,