In 1907, Alex Ranson discovered gypsum near what later became Empire. In late 1909, Alex Ranson, Nick Curnow, E. H. Cowles and James Raser filed a patent for a selenite placer mining claim. In 1911, the mine was sold to unnamed buyers, rumored to be the plaster or gypsum trust from the eastern U.S. The sale was for between $50,000 (equivalent to $1,730,000 in 2025) and $100,000 (equivalent to $3,460,000 in 2025). In 1922, the Pacific Portland Cement company started construction of a mill at what is now known as Empire. In 1924, the Pacific Portland Cement company completed the move of their mill to the current location of Empire from a location near Mound House, Nevada near what was then known as Empire and the Carson River mills. The company called the new plant Empire. U.S. Gypsum bought the town in 1948. Empire reached a maximum population of 750 in the early 1960s.
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 (9), Wikipedia, U.S. Geological Survey historical maps, 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.