On its age, its old homes and the National Register, Clay Township is more historic than 84% 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 Clay 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 Clay Township’s 5.7 sits above most of its state (66% 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 (±13.7 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 Clay 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
Five other post offices opened and closed inside today’s town.
Buford
1837–today
Sicily
1848–1895
Ridings
1857–1859
Hollowtown
1861–1905
Gath
1890–1905
Needful
1891–1905
18301930today
Hamlets and corners on the map
BufordGathHollowtownNeedfullSicily
Gone or out of use
Duncanson SchoolschoolElm SchoolschoolGath Post Officepost officeHollowtown Post Officepost officeMaple Grove SchoolschoolNeedful Post Officepost officeOakley SchoolschoolReedy SchoolschoolSicily Post Officepost officeTolle Schoolschool
4cemeteries and burying grounds inside Clay Township
BrattonBufordHigginsHollowtown
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Help out
Start Clay Township’s collection
The first neighbors to add old photos shape how Clay Township’s history is told.
Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Every edition of the U.S. Geological Survey’s map of Clay Township. Tap a year, or press play to watch the town change.
1917Sardinia 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 Clay Township.
The story so far
Clay Township, in brief
Wikipedia doesn’t have a history of Clay Township yet. The photos, dates and memories neighbors add here are how it gets written.
Clay Township is one of the seventeen townships of Highland County, Ohio, United States. As of the 2020 census the population was 1,499.
Between the 2010 and 2020 censuses its population grew from 1,431 to 1,499 (+5%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Clay Township, 1837 to 1917
Woven from the archive, old maps, post office records, the National Register and the people born here.
Clay Township is more historic than 84% 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 Clay Township?
One place: the Hirons-Brown House (listed 1976).
How old are the homes in Clay Township?
29% of Clay Township’s homes were built before 1940 (Census estimate, ±13.7 points), against a typical 15% for an Ohio town; the median home was built in 1992.
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 (4), the National Register of Historic Places (1), 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.