Founding year: the first Arapahoe post office (Blevins & Helbock, CC0).
History grade
What drives Arapahoe’s History grade
On its age, its old homes and the National Register, Arapahoe is more historic than 16% of U.S. towns. Its share of homes from before 1940 holds the grade up; its age pulls it down.
C−
HistoryA character grade: shown, never part of Arapahoe’s overall grade.
Wyoming towns list more on the Register than most of the country (a typical Wyoming town has 25.1 per 10,000 residents, the U.S. 2.4), so Arapahoe’s 0.0 sits below most of its state (16% of Wyoming towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from D− to C. The pre-1940 share is a Census survey estimate (±4.6 points). The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Arapahoe’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Arapahoe yet. The photos, dates and memories neighbors add here are how it gets written.
Arapahoe (Arapaho: Hinono'ei') is a census-designated place (CDP) in Fremont County, Wyoming, United States. The population was 1,656 at the 2010 census. A Catholic mission was founded here in 1884. St Stephen's Mission Church, located near Arapahoe, is part of the Catholic mission.
Its first post office opened in 1906. Between the 2010 and 2020 censuses its population fell from 1,656 to 1,612 (-3%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Arapahoe, 1888 to 1966
Woven from the archive, old maps, post office records, the National Register and the people born here.
The Arapahoe post office opened in 1906, the earliest record of the town by name (U.S. post office records).
How does Arapahoe rank for history?
Arapahoe is more historic than 16% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Arapahoe?
11% of Arapahoe’s homes were built before 1940 (Census estimate, ±4.6 points), against a typical 12% for a Wyoming town; the median home was built in 1983.
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).
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.
