Sidney Township is a civil township of Montcalm County in the U.S. state of Michigan. The population was 2,538 at the 2020 census. at the intersection of Derby and Sidney roads. In 1854, Phineas Swift, a New Yorker, became the first permanent settler. A post office was established on September 29, 1862, with Joshua V. Noah as the first postmaster. The community was named for the township, which in turn was named for Sidney, Ohio, the home of some of its early settlers. The Sidney post office, with ZIP code 48885, serves the central part of the township, as well as part of Montcalm Township to the west.
- The village of Sheridan is at the southeast corner of the township and incorporates some land in the township. The Sheridan post office, with ZIP code 48884, serves the southern part of Sidney Township.
- The city of Stanton is at the northeast corner of the township and incorporates some land formerly within the township. The Stanton post office, with ZIP code 48888, serves the northern part of Sidney Township.
Demographics
As of the census