A post office was established at Flournoy in 1908, and remained in operation until 1966. The community has the name of George H. Flournoy, a local rancher and Civil War veteran.
Flournoy was home to one of the last one-room schoolhouses in Northern California. The school, which opened in 1921, was given a state grant in 2001 to expand. The enrollment at the time was 34 students. The one-room school had been built in 1974, replacing an earlier structure, and was said to be "the most modern structure in tiny Flournoy" in 1991.
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, 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.