Dagsboro dates to 1747, and 1 of its places is on the National Register
Most of Dagsboro was built recently: 5% of its homes predate 1940 and the median home dates from 1987. Its Register listing is the Prince George's Chapel. Below: 5 old photos and papers, maps from 1918 on, and the census since 1880.
Dagsboro, incorporated in the early 1900s, is a town that is energized in summer by Delaware Route 26 beach traffic. The town, in the Indian River School District, was founded in 1747 and has been known as Blackfoot Town, Dagsbury and Dagsborough. It was named for John Dagworthy, a brigadier general of the Sussex County Militia during the American Revolutionary War.
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 (6), the Library of Congress (2), 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.