Dagsboro is located at . According to the United States Census Bureau, the town has a total area of, all of it land.
Demographics
At the 2010 census there were 805 people, 364 households, and 222 families living in the town. The population density was 409.5 people per square mile. There were 364 housing units at an average density of 195.7 per square mile. The racial makeup of the town was 85.6% White, 6.6% African American, 1% from American Indian, 4.2% from other races, and 2.6% from two or more races. Hispanic or Latino of any race were 8.7%. Of the 364 households 31.8% had children under the age of 18 living with them, 52.1% were married couples living together, 13.2% had a female householder with no husband present, and 28.6% were non-families. 24.8% of households were one person and 28.6% were one person aged 65 or older. The average household size was 2.59 and the average family size was 2.98. The age distribution was 22.4% under the age of 18, 9.6% from 18 to 24, 24.1% from 25 to 44, 28.9% from 45 to 64, and 15% 65 or older. The median age was 41.1 years. For every 100 females, there were 90.8 males. For every 100 females age 18 and over, there were 92.3 males. The median household income was $49,167 and the median family income was $52.250. Males had a median income of $40,662 versus $32,000 for females. The per capita income for the town was $19,949. About 10.2% of families and 10.3% of the population were below the poverty line, including 13.6% of those under age 18 and 7.9% of those age 65 or over.
Landmarks
Built in 1755 and named for Prince George, Prince George's Chapel is one of the oldest churches in the United States as well as one of the oldest buildings in Dagsboro. It became part of the Church of England's Worcester Parish on June 30, 1757 when the area was still part of Maryland. General Dagworthy, who died in 1829, is buried in the chapel's cemetery. Major renovations came in 1967 with the property's purchase by the State of Delaware. It was listed on the National Register of Historic Places in 1971. Clayton Theatre opened in Dagsboro on February 2, 1949 with One Touch of Venus, a film featuring Ava Gardner, on its single screen. The theater was named for John M. Clayton, a former United States senator and Secretary of State. In the 1950s, a soda fountain operated as Clayton Cut Rate Luncheonette in a storefront adjoining the theater. Although the Clayton now uses digital projection equipment, it continues doing business as Delaware's last single-screen theater. Dagsboro is the site of a new botanic garden, the Delaware Botanic Gardens, featuring a meadow designed by internationally known garden designer Piet Oudolf, which opened to the public in 2020.
Notable residents
John M. Clayton, Senator and U. S. Secretary of State
John Dagworthy, a military leader during the American Revolutionary War