Walthill’s post office opened in 1906, and 34% of its homes were built before 1940
2 places in town are on the National Register, among them the Picotte, Dr. Susan, Memorial Hospital, a National Historic Landmark. Below: maps from 1966 on and the census since 1910.
The Walthill post office opened in 1906, the earliest record of the town by name. Another post office, Quinton (1890), opened inside today’s town and later closed.
First census: 810 in 19102020 census: 682120 years
How did Walthill get its name?
Walthill was named for Walter "Walt" Hill, son of railroad executive James J. Hill.
Walthill was platted in 1906 when the Chicago, Burlington and Quincy Railroad was extended to that point. It was named for Walter "Walt" Hill, son of railroad executive James J. Hill.
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 Wikimedia Commons (4), Wikidata (1), the National Register of Historic Places (2), Wikipedia, Wikidata and Wikipedia for famous people, 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.