The Thor post office opened in 1882, the earliest record of the town by name. Another post office, Verbeck (1880), opened inside today’s city and later closed.
First census: 274 in 19002020 census: 181144 years
How did Thor get its name?
Thor was named after the mythical deity Thor in Old Norse mythology.
The small city of Thor is a farming community which was originally built up chiefly by Scandinavian immigrants. Settlement of the township started in 1869 with the filing of a claim by Ole Willicksen, who was a native of Stavanger, Norway. In 1881, the town of Thor was laid out by the Western Town Lot Company. Thor was platted in 1882. It was named after the mythical deity Thor in Old Norse mythology.
Thor was formerly serviced by Iowa Highway 302, which was decommissioned in 1980.
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 (2), 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.