Cornish’s post office opened in 1891
Most of Cornish was built recently: 6% of its homes predate 1940 and the median home dates from 1968.
How Cornish began
When was Cornish founded?
The Cornish post office opened in 1891, the earliest record of the town by name. Wikidata gives 1901.
Lost post offices
Cornish had its own post office from 1891 to 1918.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
History across the town line
Each neighbor’s History grade, on the same three inputs.
Questions about Cornish’s history
What year was Cornish founded?
The Cornish post office opened in 1891, the earliest record of the town by name (U.S. post office records). Wikidata gives 1901.
Memory lane
What the archives can’t tell you, neighbors can.
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 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.