The Township Board Meetings are held the 2nd Tuesday of the month at 6:00 pm
The Planning Commission meets the 2nd Thursday of the month at 6:00 pm
The Township Advisory Committee meets the 3rd Monday of the month April thru December at 6:30 pm.
Calvin Township is a civil township of Cass County in the U.S. state of Michigan. The population was 2,041 at the 2000 census.
According to the United States Census Bureau, the township has a total area of 35.6 square miles of which, 34.4 square miles of it is land and 1.1 square miles of it is water. Calvin Township is the location of the Calvin impact crater.