Each edition grades its towns against each other only.
More historic than 54% of U.S. towns. What drives it
Below: maps from 1932 on.
The Riverton Township post office opened in 1865, the earliest record of the town by name. Three smaller post offices, Riverton (1865), Wiley (1888) and Squireville (1895), opened inside today’s town and later closed.
More historic than 54% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Riverton Township is more historic than 54% of U.S. towns. 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 Riverton 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 Riverton Township’s history is told.
Three other post offices 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 Riverton Township.
Riverton Township was organized in 1868. The township was named from the fact that the Pere Marquette River forms its northern border.
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.
On the mapFirst mapped by the U.S. Geological SurveyEvery edition of the U.S. Geological Survey’s map of Riverton 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 Riverton Township.
Nobody well known was born in Riverton Township itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
The Riverton Township post office opened in 1865, the earliest record of the town by name (U.S. post office records).
Riverton Township is more historic than 54% 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.
37% of Riverton Township’s homes were built before 1940 (Census estimate, ±10.2 points), against a typical 12% for a Michigan town; the median home was built in 1961.
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 Wikimedia Commons (3), Wikipedia, 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.
2022
2022
2013
