John Pittsenbarger was the first European settler when he set up a tent in town in 1856. His application to name the town Petersburg was rejected because there was already a town of that name in Boone County, Missouri. According to local legend, the United States Postmaster General submitted his name. The Postmaster General at the time was Horatio King, (although the local history refers to Rufus King)
King City was formally platted on July 29, 1869 by Pittsenbarger.
The town became a stop on the St. Joseph and Des Moines Railway in 1878. The railway eventually became part of the Burlington Northern network and is currently abandoned.
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), the National Register of Historic Places (1), Wikipedia, Wikidata and Wikipedia for famous people, 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.