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History · Casstown

Casstown’s post office opened in 1846, and 70% of its homes were built before 1940

Its Register listing is the Casstown Lutheran Stone Church. Below: maps from 1914 on and the census since 1850.

1846first post office
1on the National Register
70%homes built before 1940
Quick answers

How Casstown began

When was Casstown founded?

1846

The Casstown post office opened in 1846, the earliest record of the town by name. Another post office, Lost Creek (1831), opened inside today’s town and later closed.

First census: 394 in 18502020 census: 270180 years
Founding year: the first Casstown post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Casstown’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 Casstown’s collection

The first neighbors to add old photos shape how Casstown’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 Casstown came to be

From Wikipedia’s history of Casstown.

Read it all →

Casstown was originally called Trimmensburgh, and under the latter name was laid out in 1832 by one Mr. Trimmens, and named for him. The present name honors Lewis Cass, an American military officer, politician, and statesman. A post office called Casstown has been in operation since 1846.

Text from Wikipedia, licensed CC BY-SA 4.0.

On the map

Casstown on the map, 1914 to 1961

Every edition of the U.S. Geological Survey’s map of Casstown. Tap a year, or press play to watch the town change.

Casstown on the 1914 USGS mapCasstown on the 1944 USGS mapCasstown on the 1961 USGS map1914Troy 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 Casstown.

From the old history books

What they wrote about Casstown, 1880–1909

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

Casstown. The only municipality within the boundaries of Lost Creek Township is the village of Casstown. It was laid out in 1832 by Levi Trimmens. It was first called Trimmensburg, but the name not suiting the iirst inhabitants it was changed to Casstown, being the only postoffice of that name in t…
Centennial history. Troy, Piqua and Miami county, Ohio1909 · page 109Read the page →
Read the text

Casstown. The only municipality within the boundaries of Lost Creek Township is the village of Casstown. It was laid out in 1832 by Levi Trimmens. It was first called Trimmensburg, but the name not suiting the iirst inhabitants it was changed to Casstown, being the only postoffice of that name in the United States. Cass-

Text read by machine from the scan; it may contain errors.
build’.ngs were mostly log structures, and poor affairs at the best ; but now a substantial brick building graces every district, and the school furniture is of the latest pattern and cannot be excelled. In Special District No. 1, which includes the village of Casstown, a large and handsome brick b…
The History of Miami County, Ohio1880 · page 396Read the page →
Read the text

build’.ngs were mostly log structures, and poor affairs at the best ; but now a substantial brick building graces every district, and the school furniture is of the latest pattern and cannot be excelled. In Special District No. 1, which includes the village of Casstown, a large and handsome brick building has been erected within the past few years. In this a thorough graded school is kept nine mouths of the year, and the result is that it ranks among the best schools in the county.

Text read by machine from the scan; it may contain errors.
Mitchell now lives [t. e. the present Hvatt farm — Ed.], and subsequently built a cabin there. He afterward exchanged it for a quarter-section then owned by Richard Palmer, my brother-in-law, and now owned by* George Hammon and Joel Burton, adjoining the village of Casstown. “ In the latter part of…
The History of Miami County, Ohio1880 · page 398Read the page →
Read the text

Mitchell now lives [t. e. the present Hvatt farm — Ed.], and subsequently built a cabin there. He afterward exchanged it for a quarter-section then owned by Richard Palmer, my brother-in-law, and now owned by* George Hammon and Joel Burton, adjoining the village of Casstown. “ In the latter part of the winter of 1813, 1 volunteered as a soldier, expecting to go to Detroit. But the surrender of Hull’s army there, left our whole northern and northwestern frontier exposed to Indian depredations. The general Government, therefore, caused a line of block-houses to be built along the frontier of Ohio

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.

Timeline

Casstown, 1831 to 1914

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1831Post officeThe Lost Creek post office opens
  3. 1845Post officeThe Lost Creek post office closes
  4. 1846Post officeThe Casstown post office opens
  5. 20th century
  6. 1914On the mapFirst mapped by the U.S. Geological Survey
By decade

Casstown, decade by decade

On the National Register

1 historic place in Casstown

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
1984
Casstown Lutheran Stone Church

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

People over time

Casstown, census by census

01002003004001850190019502000Peak: 394

Between 232 and 394 people in every census since 1850.

18 censuses, 1850–2020.

U.S. Census Bureau decennial counts, from the census table on Casstown’s Wikipedia page.

Famous people

Famous people close to Casstown

Nobody well known was born in Casstown itself, so here are the best known from just nearby.

See all →
Places that used to be

Lost post offices and places now gone

Casstown’s post office has been open since 1846. Another post office, Lost Creek, opened and closed inside today’s town.

Lost Creek
1831–1845
Casstown
1846–today
18301930today
Gone or out of use
Casstown Baptist Churchchurch

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Questions about Casstown’s history

What year was Casstown founded?

The Casstown post office opened in 1846, the earliest record of the town by name (U.S. post office records).

What is on the National Register in Casstown?

One place: the Casstown Lutheran Stone Church (listed 1984).

Memory lane

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

Town Square →
Start a conversation
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 (12), the National Register of Historic Places (1), Wikipedia, 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.