Sherman Township is a civil township of Isabella County in the U.S. state of Michigan. The population was 2,616 at the 2000 census.CommunitiesWith the exception of the Village of Lake Isabella, there are no incorporated communities within the township. Mt. Pleasant, several miles to the southeast, is the nearest city. Drew was the name of a station on the Pere Marquette Railroad that had a post office from 1899 until 1904. Sherman City is a small unincorporated community in the northwest corner of the township (and partially within Coldwater Township to the north). It is situated on the Chippewa River at. The FIPS place code is 73340 and the elevation is 963 feet above sea level. Weidman is an unincorporated community and census-designated place on the eastern edge of the township (and also partially within adjacent Nottawa Township.) The village of Lake Isabella, on the southern boundary, is partially within Sherman Township and partially in Broomfield Township.