The Fairmount post office opened in 1884, the earliest record of the town by name. Two smaller post offices, De Villo (1880) and De Villo (1888), opened inside today’s city and later closed.
2020 census: 343142 years
Founding year: the first Fairmount post office (Blevins & Helbock, CC0).
What stands out about Fairmount’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Fairmount’s post office has been open since 1884. Two other post offices opened and closed inside today’s town.
De Villo
1880–1884
Fairmount
1884–today
De Villo
1888–1895
18801950today
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Fairmount, in brief
Wikipedia doesn’t have a history of Fairmount yet. The photos, dates and memories neighbors add here are how it gets written.
Fairmount is a city in Richland County, North Dakota, United States. The population was 343 at the 2020 census. Fairmount was founded in 1884. It is part of the Wahpeton, ND–MN Micropolitan Statistical Area. In July 1884, a tornado destroyed the schoolhouse in Fairmount. Fifteen students were injured, and the teacher's leg was fractured.
Its first post office opened in 1884. Between the 2010 and 2020 censuses its population fell from 367 to 343 (-7%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Fairmount, 1880 to 1895
Woven from the archive, old maps, post office records, the National Register and the people born here.
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.