The Sunfield Township post office opened in 1855, the earliest record of the town by name. Four smaller post offices, Bismarck (1871), Clinton Junction (1871) and Shaytown (1880), opened inside today’s town and later closed.
First census: 451 in 19002020 census: 2,050171 years
How historic is Sunfield Township?
B+
More historic than 73% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Sunfield Township post office (Blevins & Helbock, CC0).
History grade
What drives Sunfield Township’s History grade
On its age, its old homes and the National Register, Sunfield Township is more historic than 73% of U.S. towns. Its share of homes from before 1940 holds the grade up; its age pulls it down.
B+
HistoryA character grade: shown, never part of Sunfield Township’s overall grade.
Few Michigan towns list much on the Register (a typical Michigan town has 0.0 per 10,000 residents, the U.S. 2.4), so Sunfield Township’s 5.6 sits above most of its state (77% of Michigan towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B− to A. The pre-1940 share is a Census survey estimate (±6.5 points). The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Sunfield Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners, places now gone and burying grounds
Four other post offices opened and closed inside today’s town.
Sunfield
1855–today
Bismarck
1871–1904
Clinton Junction
1871–1874
Shaytown
1880–1901
Dellwood
1882–1903
18501940today
Hamlets and corners on the map
ShaytownSunfield
Gone or out of use
Bismarck Post Officepost officeClinton Junction Post Officepost officeClinton Junction Post Officepost officeDellwood Post Officepost officeShaytown Post Officepost officeStony Acres Airportairport
4cemeteries and burying grounds inside Sunfield Township
FreemireHagarSunfieldWelch
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Sunfield Township, in brief
Wikipedia doesn’t have a history of Sunfield Township yet. The photos, dates and memories neighbors add here are how it gets written.
Its first post office opened in 1855. Between the 2010 and 2020 censuses its population grew from 1,997 to 2,050 (+3%).
Timeline
Sunfield Township, 1855 to 1950
Woven from the archive, old maps, post office records, the National Register and the people born here.
Every edition of the U.S. Geological Survey’s map of Sunfield Township. Tap a year, or press play to watch the town change.
1950Nashville sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Sunfield Township.
On the National Register
1 historic place in Sunfield Township
The country’s official list of buildings and places worth saving.
The Sunfield Township post office opened in 1855, the earliest record of the town by name (U.S. post office records).
How does Sunfield Township rank for history?
Sunfield Township is more historic than 73% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Sunfield Township?
One place: the Sunfield Grand Army of the Republic Post No. 283 Hall (listed 1992).
How old are the homes in Sunfield Township?
34% of Sunfield Township’s homes were built before 1940 (Census estimate, ±6.5 points), against a typical 12% for a Michigan town; the median home was built in 1971.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikidata (1), the National Register of Historic Places (1), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.