Each edition grades its towns against each other only.
More historic than 64% of U.S. towns · #498 of 993 in Ohio. What drives it
2 places in town are on the National Register. Below: maps from 1961 on.
The Twin Township post office opened in 1889, the earliest record of the town by name. Two smaller post offices, Brennersville (1851) and Twin (1889), opened inside today’s town and later closed.
More historic than 64% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Twin Township is more historic than 64% of U.S. towns, #498 of 993 in Ohio. Its share of homes from before 1940 holds the grade up; its age pulls it down.
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 Twin Township’s 7.5 sits above most of its state (70% of Ohio towns have fewer) while its 2 listings outnumber those of 60% 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 Twin Township’s history is told.
Two 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).
Wikipedia doesn’t have a history of Twin Township yet. The photos, dates and memories neighbors add here are how it gets written.
Twin Township is one of the twelve townships of Preble County, Ohio, United States. The 2020 census found 2,669 people in the township.
Its first post office opened in 1889. Between the 2010 and 2020 censuses its population fell from 2,790 to 2,669 (-4%).
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.
Every edition of the U.S. Geological Survey’s map of Twin 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 Twin 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 Twin Township itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
The Twin Township post office opened in 1889, the earliest record of the town by name (U.S. post office records).
Twin Township is more historic than 64% of U.S. towns, #498 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.
21% of Twin Township’s homes were built before 1940 (Census estimate, ±6.5 points), against a typical 15% for an Ohio town; the median home was built in 1972.
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), 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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