On its age, its old homes and the National Register, Green Township is more historic than 55% of U.S. towns, #593 of 993 in Ohio. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
B−
HistoryA character grade: shown, never part of Green 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 Green Township’s 0.0 sits below most of its state (23% of Ohio towns have fewer) while its 0 listings outnumber those of 23% 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 (±9.7 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 Green Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners, places now gone and burying grounds
Four other post offices opened and closed inside today’s town.
Bloomington
1817–1906
Snow Hill
1823–1865
Clinton House
1843–1847
New Antioch
1847–1907
18101920today
Hamlets and corners on the map
New AntiochSnow Hill
Gone or out of use
Bloomington Post Officepost officeBrick SchoolschoolFairview SchoolschoolMount Olive SchoolschoolNew Antioch Post Officepost officeSchool Number 2schoolSchool Number 4schoolSnow Hill Post Officepost officeTerrell Airportairport
3cemeteries and burying grounds inside Green Township
AchorNew AntiochSwingley Farm
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Green Township on the map, 1917 to 1960
Every edition of the U.S. Geological Survey’s map of Green Township. Tap a year, or press play to watch the town change.
1917Sabina 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 Green Township.
The story so far
Green Township, in brief
Wikipedia doesn’t have a history of Green Township yet. The photos, dates and memories neighbors add here are how it gets written.
Green Township is one of the thirteen townships of Clinton County, Ohio, United States. The 2020 census reported 2,468 people living in the township.
Its population held steady between the last two censuses: 2,473 in 2010, 2,468 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Green Township, 1817 to 1917
Woven from the archive, old maps, post office records, the National Register and the people born here.
Green Township is more historic than 55% of U.S. towns, #593 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.
How old are the homes in Green Township?
28% of Green Township’s homes were built before 1940 (Census estimate, ±9.7 points), against a typical 15% for an Ohio town; the median home was built in 1974.
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.