Mason Township is a civil township of Cass County in the U.S. state of Michigan. The population was 2,841 at the 2020 census.
Geography
Mason Township is located in southern Cass County, along the Indiana state line. The unincorporated community of Kessington is in the southeastern part of the township, and Allenton is in the southwest. The community of Simonton Lake, Indiana, is directly to the south.
According to the United States Census Bureau, the township has a total area of , of which is land and , or 1.45%, is water.
History
Cass County had been originally organized by an act of the Michigan Territorial Council on November 4, 1829, as four townships while Lewis Cass was the territorial governor. Mason was included in Ontwa Township at the end of 1833, and at the start of 1834 Mason Township was formed into the same land area that it is today, which is less than the standard of most townships.