Grass Lake Charter Township is a charter township of Jackson County in the U.S. state of Michigan. The population was 6,069 at the 2020 census, up from 5,684 at the 2010 census.
Communities
- Grass Lake is a village in the central portion of the township.
Geography
According to the United States Census Bureau, the township has a total area of , of which is land and (3.29%) is water.