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History · Corwin Springs

Corwin Springs’ post office opened in 1909

Most of Corwin Springs was built recently: 2% of its homes predate 1940 and the median home dates from 1987. Below: maps from 1955 on.

1909first post office
0on the National Register
2%homes built before 1940
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Quick answers

How Corwin Springs began

When was Corwin Springs founded?

1909

The Corwin Springs post office opened in 1909, the earliest record of the town by name.

2020 census: 101117 years
Founding year: the first Corwin Springs post office (Blevins & Helbock, CC0).

What stands out about Corwin Springs’ past

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

A history waiting to be writtenNo old photos of Corwin Springs are in the public archives yet. The rest are in attics and albums.
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Start Corwin Springs’s collection

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

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

Corwin Springs, in brief

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

Corwin Springs is an unincorporated community in Park County, Montana, United States. As of the 2020 census, Corwin Springs had a population of 101. For statistical purposes, the United States Census Bureau has defined Corwin Springs as a census-designated place (CDP).

Its first post office opened in 1909. Between the 2010 and 2020 censuses its population fell from 109 to 101 (-7%).

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

By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

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On the map

Corwin Springs on the map, 1955 to 2000

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

Corwin Springs on the 1955 USGS mapCorwin Springs on the 1986 USGS mapCorwin Springs on the 2000 USGS map1955Miner 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 Corwin Springs.

Places that used to be

Places now gone

Corwin Springs’s post office has been open since 1909.

Gone or out of use
Corwin SchoolschoolCorwin SpringslocaleCorwin Springs Post Officepost officeMulherinlocale

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

Questions about Corwin Springs’ history

What year was Corwin Springs founded?

The Corwin Springs post office opened in 1909, 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 →
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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 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.