A post office called Seatonville has been in operation since 1889, named for W. A. Seaton, an early settler.
The town is part of a constellation of coal mining towns centered on Spring Valley and LaSalle, Illinois. The Seaton brothers, Isom and James, sank the first coal mine shaft there in 1880. The mine was sold in 1888 to the Chicago, Wilmington, and Vermilion Coal Company based in Braidwood, Illinois. During the strike of 1889, it was the only mine operating in northern Illinois. A small community of African-Americans was brought in by the company to replace deserting miners.
The mine went bankrupt in 1900 and was purchased by the Spring Valley Coal Company. The town grew until the mine was closed in 1913.
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 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.