On its age, its old homes and the National Register, Greenwich Township is more historic than 83% 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 Greenwich 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 Greenwich Township’s 9.1 sits above most of its state (73% 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 (±14.0 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 Greenwich Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Greenwich Township. Tap a year, or press play to watch the town change.
1908New London sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Greenwich Township.
The village name comes from Greenwich Township, which is named after the town of Greenwich, Connecticut. A post office called Greenwich was established in 1828 and the municipality was incorporated as a village in 1879. The first settler in Greenwich was Henry Carpenter, who arrived from Ulster County, New York, 1817. Greenwich is part of the Firelands region, also known as the "Sufferers' Lands." This area was designated in 1792 to compensate residents of Connecticut towns, including Greenwich, whose homes were burned during the Revolutionary War.
Greenwich Township is more historic than 83% 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 Greenwich Township?
One place: the Mead-Zimmerman House (listed 1978).
How old are the homes in Greenwich Township?
25% of Greenwich Township’s homes were built before 1940 (Census estimate, ±14.0 points), against a typical 15% for an Ohio town; the median home was built in 1986.
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 (9), the National Register of Historic Places (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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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