Founding year: Wikidata. First post office: 1835.The full story ↓
History grade
What drives Napoleon’s History grade
On its age, its old homes and the National Register, Napoleon is more historic than 86% of U.S. towns, #207 of 993 in Ohio. All 3 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 Napoleon’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 Napoleon’s 4.5 sits near the middle of its state (63% of Ohio towns have fewer) while its 4 listings outnumber those of 68% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from A− to A. The pre-1940 share is a Census survey estimate (±5.6 points). Two sources give 1834.
Founding year: Wikidata (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 →
What stands out about Napoleon’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
The area around the town was once known as "the Great Black Swamp". This area was opened to European settlement following the Battle of Fallen Timbers in 1794, which took place about 26 miles to the east.
The City of Napoleon was founded in 1832 and named for French emperor Napoleon Bonaparte. The Miami and Erie Canal was finished in 1843, bringing German immigrants to the area. By the 1880s, the town had more than 3,000 residents; the population growth due in part to the town's location on the Miami and Erie Canal and two separate railroad lines. At the time, most employment existed through businesses which made products for farmers in the surrounding countryside.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
In 1834, according to Wikidata. Napoleon’s post office opened in 1835, and the census of 1850 counted 566 people here.
How does Napoleon rank for history?
Napoleon is more historic than 86% of U.S. towns, #207 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.
What is on the National Register in Napoleon?
4 listings: 4 buildings, among them the Henry County Courthouse (listed 1973, the first).
How old are the homes in Napoleon?
27% of Napoleon’s homes were built before 1940 (Census estimate, ±5.6 points), against a typical 15% for an Ohio town; the median home was built in 1963.
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 (6), the National Register of Historic Places (4), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
1904
1908
1908
1908
