Each edition grades its towns against each other only.
Photo: Nyttend · Public domainMore historic than 82% of U.S. towns · #277 of 993 in Ohio. What drives it
Its Register listings are the Joseph Flory House. Below: maps from 1905 on.
More historic than 82% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Clay Township is more historic than 82% of U.S. towns, #277 of 993 in Ohio. All 2 inputs are above most U.S. towns; its National Register listings ranks highest and its share of homes from before 1940 lowest.
Ohio towns list about as much on the Register as the country (a typical Ohio town has 2.9 per 10,000 residents, the U.S. 2.4), so Clay Township’s 6.8 sits above most of its state (69% of Ohio towns have fewer) while its 6 historic buildings outnumber those of 72% of U.S. towns.
Founding year: our sources. 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.
Six 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).
The first neighbors to add old photos shape how Clay Township’s history is told.
Wikipedia doesn’t have a history of Clay Township yet. The photos, dates and memories neighbors add here are how it gets written.
Clay Township is one of the nine townships of Montgomery County, Ohio, United States. As of the 2020 census the population was 8,876.
Its population held steady between the last two censuses: 8,847 in 2010, 8,876 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
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 Clay 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 Clay Township.
The country’s official list of buildings and places worth saving.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Nobody well known was born in Clay Township itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
Clay Township is more historic than 82% of U.S. towns, #277 of 993 in Ohio. 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.
2 listings: 1 building, among them the Joseph Flory House (listed 1978, the first). 6 historic buildings in all.
20% of Clay Township’s homes were built before 1940 (Census estimate, ±3.8 points), against a typical 15% for an Ohio town; the median home was built in 1969.
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), 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.
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