Hagan’s post office opened in 1890, and 1 of its places is on the National Register
Its Register listing is the George W. DeLoach House. Most of Hagan was built recently: 1% of its homes predate 1940 and the median home dates from 1991. Its Register listing is the George W. DeLoach House. Below: maps from 1919 on and the census since 1910.
The Georgia General Assembly incorporated the place as the City of Hagan in 1906. The community was named after Susan Hagan, the wife of the original owner of the town site.
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 the National Register of Historic Places (1), 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.