Duncan Falls’ post office opened in 1837, and 13% of its homes were built before 1940
More historic than 78% of U.S. towns. What drives it
2 places in town are on the National Register.
How Duncan Falls began
When was Duncan Falls founded?
The Duncan Falls post office opened in 1837, the earliest record of the town by name.
How historic is Duncan Falls?
More historic than 78% of U.S. towns, on its age, its old homes and the National Register.
What drives Duncan Falls’ History grade
On its age, its old homes and the National Register, Duncan Falls is more historic than 78% of U.S. towns. All 3 inputs are above most U.S. towns; its age 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 Duncan Falls’ 14.8 sits above most of its state (78% 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 →
2 historic places in Duncan Falls
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.
History across the town line
Each neighbor’s History grade, on the same three inputs.
Questions about Duncan Falls’ history
What year was Duncan Falls founded?
The Duncan Falls post office opened in 1837, the earliest record of the town by name (U.S. post office records).
How does Duncan Falls rank for history?
Duncan Falls is more historic than 78% 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.
How old are the homes in Duncan Falls?
13% of Duncan Falls’ homes were built before 1940 (Census estimate, ±11.8 points), against a typical 15% for an Ohio town; the median home was built in 1978.
Memory lane
What the archives can’t tell you, neighbors can.
Where this page comes from
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).