The Brookfield Township post office opened in 1858, the earliest record of the town by name. Another post office, Brookfield (1858), opened inside today’s town and later closed.
2020 census: 1,467168 years
How historic is Brookfield Township?
B
More historic than 65% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Brookfield Township post office (Blevins & Helbock, CC0).
History grade
What drives Brookfield Township’s History grade
On its age, its old homes and the National Register, Brookfield Township is more historic than 65% 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 Brookfield 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 Brookfield Township’s 7.5 sits above most of its state (80% 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 (±8.4 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 Brookfield Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Brookfield Township. Tap a year, or press play to watch the town change.
1921Marshall 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 Brookfield Township.
The story so far
Brookfield Township, in brief
Wikipedia doesn’t have a history of Brookfield Township yet. The photos, dates and memories neighbors add here are how it gets written.
Brookfield Township is a civil township of Eaton County in the U.S. state of Michigan. As of the 2020 census, the township population was 1,467.
Its first post office opened in 1858. Between the 2010 and 2020 censuses its population fell from 1,537 to 1,467 (-5%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Brookfield Township, 1858 to 1921
Woven from the archive, old maps, post office records, the National Register and the people born here.
The Brookfield Township post office opened in 1858, the earliest record of the town by name (U.S. post office records).
How does Brookfield Township rank for history?
Brookfield Township is more historic than 65% 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 Brookfield Township?
One place: the Powers Highway-Battle Creek Bridge (listed 2000).
How old are the homes in Brookfield Township?
22% of Brookfield Township’s homes were built before 1940 (Census estimate, ±8.4 points), against a typical 12% for a Michigan town; the median home was built in 1981.
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 the National Register of Historic Places (1), 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.
