South Bethany was first counted by the census in 1970
Most of South Bethany was built recently: 0.0% of its homes predate 1940 and the median home dates from 1992. Below: maps from 1918 on and the census since 1970.
Every edition of the U.S. Geological Survey’s map of South Bethany. Tap a year, or press play to watch the town change.
1918Rehoboth sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of South Bethany.
There is no record of Native American activity in what is now South Bethany, but Native Americans are known to have visited the bays and rivers of the Atlantic coast of Delaware during the summer to fish, and it is possible that this included visits to the South Bethany area.
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 (18), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.