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History · Mendon

Mendon’s post office opened in 1839, and 44% of its homes were built before 1940

Its Register listing is the Mendon Town Hall. Below: old-book passages.

1839first post office
1on the National Register
44%homes built before 1940
1famous people
Quick answers

How Mendon began

When was Mendon founded?

1839

The Mendon post office opened in 1839, the earliest record of the town by name.

2020 census: 628187 years
Founding year: the first Mendon post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Mendon’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Mendon’s collection

The first neighbors to add old photos shape how Mendon’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The story

How Mendon came to be

From Wikipedia’s history of Mendon.

Read it all →

Mendon was originally called Guilford, and under the latter name was platted in 1834. A post office called Mendon has been in operation since 1839.

Mendon's village hall, officially named the Mendon Town Hall, is listed on the National Register of Historic Places.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Mendon in 1907

Passages that mention Mendon, cut from the printed page as they were published.

and was inhabited by friendly Indians, who were very often of great assistance to the pioneers. Lie was for many years a teacher and was one of the; best educated men of the day. He was a surveyor and laid out the town site of Mendon, part of which was on his land. Lie served as an associate judge …
History of Mercer County, Ohio1907 · page 621Read the page →
Read the text

and was inhabited by friendly Indians, who were very often of great assistance to the pioneers. Lie was for many years a teacher and was one of the; best educated men of the day. He was a surveyor and laid out the town site of Mendon, part of which was on his land. Lie served as an associate judge of the Court of Common Pleas and was twice elected to the Legislature (in 1831 and 1832) from the district composed of the counties of Mercer, Darke, Allen, Putnam, Henry, Paulding and Williams. He was selected to read the bills in the Legislature, owing to his special ability as a reader. He was a

Text read by machine from the scan; it may contain errors.
to Mercer County, the Indians camped on his land and many times aided him in various ways. Fie was one of the first surveyors in Mercer County. He owned a large body of land here, located on Twelve-Mile Creek, one mile and a half southwest of Mendon. He owned the greater part of the land around Men…
History of Mercer County, Ohio1907 · page 647Read the page →
Read the text

to Mercer County, the Indians camped on his land and many times aided him in various ways. Fie was one of the first surveyors in Mercer County. He owned a large body of land here, located on Twelve-Mile Creek, one mile and a half southwest of Mendon. He owned the greater part of the land around Mendon, and surveyed the site of that town and platted it. He was a member for two terms of the Ohio House of Representatives, representing the counties of Mercer, Darke, Allen, Putnam, Henry, Paulding and Williams. Owing to his special ability as a reader, he was selected to read many bills before the

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

Mendon, decade by decade

On the National Register

1 historic place in Mendon

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
each building in a district counts
first listed
1978
Mendon Town Hall

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

Questions about Mendon’s history

What year was Mendon founded?

The Mendon post office opened in 1839, the earliest record of the town by name (U.S. post office records).

What is on the National Register in Mendon?

One place: the Mendon Town Hall (listed 1978).

Memory lane

What the archives can’t tell you, neighbors can.

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Sources

Where this page comes from

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). How TownRatings grades history →

From Wikimedia Commons (6), the National Register of Historic Places (1), Wikipedia, Wikidata and Wikipedia for famous people, 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.