Summerhaven’s post office opened in 1924, and 1 of its places is on the National Register
Most of Summerhaven was built recently: 0.0% of its homes predate 1940 and the median home dates from 1990. Its Register listing is the Lemmon Rock Lookout House.
How Summerhaven began
When was Summerhaven founded?
The Summerhaven post office opened in 1924, the earliest record of the town by name.
1 historic place in Summerhaven
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.
Lost post offices, old corners and places now gone
Summerhaven had its own post office from 1924 to 1929.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Summerhaven’s history
What year was Summerhaven founded?
The Summerhaven post office opened in 1924, the earliest record of the town by name (U.S. post office records).
What is on the National Register in Summerhaven?
One place: the Lemmon Rock Lookout House (listed 1988).
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.