The Greenbush Township post office opened in 1844, the earliest record of the town by name. Two smaller post offices, Greenbush (1844) and Union Home (1863), opened inside today’s town and later closed.
2020 census: 2,143182 years
How historic is Greenbush Township?
B
More historic than 64% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Greenbush Township post office (Blevins & Helbock, CC0).
History grade
What drives Greenbush Township’s History grade
On its age, its old homes and the National Register, Greenbush Township is more historic than 64% of U.S. towns. Its age holds the grade up; its National Register listings pull it down.
B
HistoryA character grade: shown, never part of Greenbush 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 Greenbush Township’s 0.0 sits below most of its state (32% of Michigan towns have fewer) while its 0 listings outnumber those of 23% 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 (±6.4 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 Greenbush 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
Two other post offices opened and closed inside today’s town.
Greenbush
1844–1867
Union Home
1863–1903
Eureka
1867–today
18401930today
Hamlets and corners on the map
Eureka
Gone or out of use
Union Home Post Officepost office
4cemeteries and burying grounds inside Greenbush Township
EurekaFrench RoadRichmondUnion Home
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Greenbush Township on the map, 1918 to 1965
Every edition of the U.S. Geological Survey’s map of Greenbush Township. Tap a year, or press play to watch the town change.
1918Perrinton 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 Greenbush Township.
The story so far
Greenbush Township, in brief
Wikipedia doesn’t have a history of Greenbush Township yet. The photos, dates and memories neighbors add here are how it gets written.
Greenbush Township is a civil township of Clinton County in the U.S. state of Michigan. The population was 2,143 at the 2020 census.
Its first post office opened in 1844. Between the 2010 and 2020 censuses its population fell from 2,199 to 2,143 (-3%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Greenbush Township, 1844 to 1918
Woven from the archive, old maps, post office records, the National Register and the people born here.
The Greenbush Township post office opened in 1844, the earliest record of the town by name (U.S. post office records).
How does Greenbush Township rank for history?
Greenbush Township is more historic than 64% 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.
How old are the homes in Greenbush Township?
21% of Greenbush Township’s homes were built before 1940 (Census estimate, ±6.4 points), against a typical 12% for a Michigan town; the median home was built in 1973.
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 Wikimedia Commons (2), Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, 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.