The Chokio post office opened in 1879, the earliest record of the town by name. Another post office, Cho-Ki-O (1879), opened inside today’s city and later closed.
First census: 300 in 19002020 census: 405147 years
Founding year: the first Chokio post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Chokio’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
"Chokio" derives from a Lakota word meaning "the middle". It was a midway stop on the Pony Express route between Morris and Graceville. Other accounts say it was the halfway point on the old Wadsworth Trail, which ran between St. Cloud and Sisseton, South Dakota.
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 Library of Congress (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.