Founding year: Wikidata. First post office: 1811.The full story ↓
History grade
What drives Plain City’s History grade
On its age, its old homes and the National Register, Plain City is more historic than 79% of U.S. towns, #325 of 993 in Ohio. All 3 inputs are above most U.S. towns; its age ranks highest and its National Register listings lowest.
A−
HistoryA character grade: shown, never part of Plain City’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 Plain City’s 2.6 sits near the middle of its state (55% of Ohio towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
NoteThe founding year comes from Wikidata alone; no second source gives 1795.
How sure. Graded on any two of the three inputs instead, the letter would range from B+ to A−. The pre-1940 share is a Census survey estimate (±8.5 points).
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 Plain City’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Until about 1800, the Ohio Country was inhabited by Mingo and Wyandot Indians, and there was an Indian village just north of present-day Plain City. After 1795, as white settlers began moving into the region, the area around present-day Plain City was referred to as Pleasant Valley. This name remained in use into the 20th century, appearing in the Ohio Guide of the late Depression era.
Passages that mention Plain City, cut from the printed page as they were published.
History of Madison County Ohio1915 · page 301Read the page →
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The Presbyterian church of Plain City appears to have been the first church organized in Madison county. Joshua Ewing and his family, James, his brother, Betsey, his sister, and their aged mother emigrated from Kentucky to Darby township in 1798 and settled a short distance northwest of the present site of Plain City.
Text read by machine from the scan; it may contain errors.
History of Madison County, Ohio1915 · page 301Read the page →
Read the text
The Presbyterian church of Plain City appears to have been the first church organized in Madison county. Joshua Ewing and his family, James, his brother, Betsey, his sister, and their aged mother emigrated from Kentucky to Darby township in 1798 and settled a short distance northwest of the present site of Plain City.
Text read by machine from the scan; it may contain errors.
History of Madison County, Ohio1915 · page 100Read the page →
Read the text
Israel Bigelow, his father, came to the township in 1828 and purchased property in the village of Plain City. He was also a practicing physician and for several years followed his profession in Plain City and the surrounding country. He died in Plain City in 1838.
Text read by machine from the scan; it may contain errors.
Israel Bigelow, his father, came to the township in 1828 and purchased property in - the village of Plain City. He was also a practicing physician and for several years followed his profession in Plain City and the surrounding country. He died in Plain City in 1888.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
By decade
Plain City, decade by decade
3 decades in the archive, from the 1890s to the 1930s. Scroll each row; tap a photo for its story.
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 1795, according to Wikidata. Plain City’s post office opened in 1811, and the census of 1880 counted 908 people here.
How does Plain City rank for history?
Plain City is more historic than 79% of U.S. towns, #325 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 Plain City?
One place: the Farmers National Bank (listed 1995).
How old are the homes in Plain City?
23% of Plain City’s homes were built before 1940 (Census estimate, ±8.5 points), against a typical 15% for an Ohio town; the median home was built in 1995.
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), the Library of Congress (3), the National Register of Historic Places (1), 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 old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.