Sun River’s post office opened in 1868, and 56% of its homes were built before 1940
Its Register listing is the Adam's, J. C., Stone Barn. Its Register listing is the Adam's, J. C., Stone Barn.
How Sun River began
When was Sun River founded?
The Sun River post office opened in 1868, the earliest record of the town by name.
1 historic place in Sun River
The country’s official list of buildings and places worth saving.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Places now gone
Sun River’s post office has been open since 1868.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Sun River’s history
What year was Sun River founded?
The Sun River post office opened in 1868, the earliest record of the town by name (U.S. post office records).
What is on the National Register in Sun River?
One place: the Adam's, J. C., Stone Barn (listed 1979).
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 National Register of Historic Places (1), 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.