Guest, Sign inJoin

Post to Seneca

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
–Not graded
History · Seneca

Seneca’s post office opened in 1855, and 26% of its homes were built before 1940

Below: maps from 1924 on and old-book passages.

1855first post office
0on the National Register
26%homes built before 1940
Quick answers

How Seneca began

When was Seneca founded?

1855

The Seneca post office opened in 1855, the earliest record of the town by name. Another post office, Shaw Hill (1869), opened inside today’s town and later closed.

2020 census: 932171 years
Founding year: the first Seneca post office (Blevins & Helbock, CC0).

What stands out about Seneca’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 Seneca’s collection

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

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

Seneca on the map, 1924 to 1983

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

Seneca on the 1924 USGS mapSeneca on the 1966 USGS mapSeneca on the 1983 USGS map1924Gays Mills 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 Seneca.

The story so far

Seneca, in brief

Wikipedia doesn’t have a history of Seneca yet. The photos, dates and memories neighbors add here are how it gets written.

Seneca is a village in Crawford County, Wisconsin, United States. The population was 932 at the 2020 census. The unincorporated community of Seneca is located in the town.

Its first post office opened in 1855. Between the 2010 and 2020 censuses its population grew from 866 to 932 (+8%).

Intro from Wikipedia. Population: U.S. Census Bureau.

From the old history books

What they wrote about Seneca in 1881

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

Those settlers who located in the northern half, with scarcely an exception, came from Seneca County, where large emigrations of New Englanders have settled, many of them before the war of 1812. Alter most of the land in Seneca [ settled and improved by those who came from Mansfield through Bucyrus…
History of Crawford county and Ohio. Containing a history of the state of Ohio, from its earliest settlement to the present time ... a history of Crawford county ... biographical sketches1881 · page 671Read the page →
Read the text

Those settlers who located in the northern half, with scarcely an exception, came from Seneca County, where large emigrations of New Englanders have settled, many of them before the war of 1812. Alter most of the land in Seneca [ settled and improved by those who came from Mansfield through Bucyrus. The land in the

Text read by machine from the scan; it may contain errors.
Pioneers from the old settlements on Sandusky River, in Seneca County, came into the northern part as early as 1825, while no improvement was made in the eastern part until about five years later. It was natural and customary for settlers to select land that would repay them for the labor of cleari…
History of Crawford county and Ohio. Containing a history of the state of Ohio, from its earliest settlement to the present time ... a history of Crawford county ... biographical sketches1881 · page 699Read the page →
Read the text

Pioneers from the old settlements on Sandusky River, in Seneca County, came into the northern part as early as 1825, while no improvement was made in the eastern part until about five years later. It was natural and customary for settlers to select land that would repay them for the labor of clearing with an immediate and abundant crop. Afterward, 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.

Timeline

Seneca, 1855 to 1924

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

  1. 19th century
  2. 1855Post officeThe Seneca post office opens
  3. 1869Post officeThe Shaw Hill post office opens
  4. 1871Post officeThe Shaw Hill post office closes
  5. 20th century
  6. 1924On the mapFirst mapped by the U.S. Geological Survey
By decade

Seneca, decade by decade

Famous people

Famous people close to Seneca

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

See all →
Places that used to be

Lost post offices, places now gone and burying grounds

Seneca’s post office has been open since 1855. Another post office, Shaw Hill, opened and closed inside today’s town.

Seneca
1855–today
Shaw Hill
1869–1871
18501940today
Gone or out of use
Crawford County InfirmaryhospitalDean SchoolschoolHalls Branch SchoolschoolLeitner SchoolschoolLower Copper Creek SchoolschoolMount Hope SchoolschoolNorwegian SchoolschoolOak Grove SchoolschoolProgressvie Ridge SchoolschoolSchurz SchoolschoolShaw Hill SchoolschoolStony Point Schoolschool
2cemeteries and burying grounds inside Seneca
Saint PatricksStuart

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

Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Seneca’s history

What year was Seneca founded?

The Seneca post office opened in 1855, the earliest record of the town by name (U.S. post office records).

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 (4), U.S. Geological Survey historical maps, 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.