Delaware City is a city in New Castle County, Delaware, United States. The population was 1,695 at the 2010 census. It is a small port town on the eastern terminus of the Chesapeake and Delaware Canal and is the location of the Forts Ferry Crossing to Fort Delaware on Pea Patch Island.
The Delaware City Historic District, Chelsea, Eastern Lock of the Chesapeake and Delaware Canal, Fairview, and Fort Delaware on Pea Patch Island are listed on the National Register of Historic Places.
Delaware City is located at 39°34′40″N 75°35′20″W (39.5778901, -75.5888150).
According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.4 km2), of which, 1.3 square miles (3.4 km2) of it is land and 0.1 square miles (0.26 km2) of it (6.01%) is water.
As of the census of 2000, there were 1,453 people, 567 households, and 395 families residing in the city. The population density was 1,156.3 people per square mile (445.2/km²). There were 616 housing units at an average density of 490.2 per square mile (188.8/km²). The racial makeup of the city was 87.47% White, 10.32% African American, 0.41% Native American, 0.21% Asian, 0.69% from other races, and 0.89% from two or more races. Hispanic or Latino of any race were 1.24% of the population.
There were 567 households out of which 31.6% had children under the age of 18 living with them, 46.0% were married couples living together, 16.0% had a female householder with no husband present, and 30.2% were non-families.