Each edition grades its towns against each other only.
More historic than 26% of U.S. towns · #596 of 701 in Michigan. What drives it
Most of Dorr Township was built recently: 7% of its homes predate 1940 and the median home dates from 1986. Below: maps from 1959 on and the census since 1960.
The Dorr Township post office opened in 1870, the earliest record of the town by name. Another post office, North Dorr (1874), opened inside today’s town and later closed.
More historic than 26% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Dorr Township is more historic than 26% of U.S. towns, #596 of 701 in Michigan. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
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 Dorr 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.
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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Dorr Township’s history is told.
Another post office, North Dorr, opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
From Wikipedia’s history of Dorr Township.
This area was long the territory of Algonquian-language tribes, specifically the Ojibwe, Odawa and Potawatomi.
The first permanent European-American settlers in the township arrived in 1845. The first settler in the community of Dorr came in 1856, and arranged for the town to be platted in 1869. It received a United States post office in 1870.
Text from Wikipedia, licensed CC BY-SA 4.0.
Woven from the archive, old maps, post office records, the National Register and the people born here.
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of Dorr Township. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Dorr Township.
Grew from 2,313 people in 1960 to 7,922 in 2020, 3 times over.
7 censuses, 1960–2020.
U.S. Census Bureau decennial counts, from the census table on Dorr Township’s Wikipedia page.
Each neighbor’s History grade, on the same three inputs.
The Dorr Township post office opened in 1870, the earliest record of the town by name (U.S. post office records).
Dorr Township is more historic than 26% of U.S. towns, #596 of 701 in Michigan. 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.
7% of Dorr Township’s homes were built before 1940 (Census estimate, ±3.4 points), against a typical 12% for a Michigan town; the median home was built in 1986.
What the archives can’t tell you, neighbors can.
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 Wikipedia, Wikidata and Wikipedia for famous people, 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.
