On its age, its old homes and the National Register, Monroe Township is more historic than 90% of U.S. towns. All 2 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its National Register listings lowest.
A
HistoryA character grade: shown, never part of Monroe Township’s overall grade.
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 Monroe Township’s 4.3 sits near the middle of its state (62% of Ohio towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±8.5 points).
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 →
What stands out about Monroe Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Monroe Township, in brief
Wikipedia doesn’t have a history of Monroe Township yet. The photos, dates and memories neighbors add here are how it gets written.
Monroe Township is one of the twelve townships of Preble County, Ohio, United States. The 2020 census found 2,084 people in the township. The Monroe community is served by National Trail High School and the National Trail Local School District. Interstate 70 runs along the southern part of the township and has a major interchange at U.S. Route 127.
Between the 2010 and 2020 censuses its population fell from 2,258 to 2,084 (-8%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Monroe Township, 1866 to 1902
Woven from the archive, old maps, post office records, the National Register and the people born here.
Monroe Township is more historic than 90% 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 Monroe Township?
One place: the Geeting Covered Bridge (listed 1975).
How old are the homes in Monroe Township?
58% of Monroe Township’s homes were built before 1940 (Census estimate, ±8.5 points), against a typical 15% for an Ohio town; the median home was built in 1938.
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 (2), the National Register of Historic Places (1), 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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