Dover, city, capital (1777) of Delaware, U.S., seat of Kent county, in the east-central portion of the state on the St. Jones River. It was laid out in 1717 around an existing county courthouse and jail on the order (1683) of William Penn and was named for the English city. Dover was incorporated as a town in 1829 and as a city in 1929. Colonial buildings clustered around the Green include the Old State House (1792), which served as the capitol until 1933 when the main state offices were transferred to nearby Legislative Hall. King Charles II’s royal grant and William Penn’s deeds to Delaware (1682) from James, duke of York (later King James II), are displayed in the Hall of Records. The boyhood home (1740) of John Dickinson, “penman of the Revolution,” is preserved. The Delaware State Museum sites in Dover include Meeting House Gallery I, which occupies a former Presbyterian church (1790).
Dover is a state government and farm trade centre with some light industries. It is the seat of Delaware State University (1891) and Wesley College (1873). Dover Air Force Base, established during World War II, is the principal air cargo terminal for the Air Mobility Command. The Delaware Agricultural Museum and Village is 2 miles (3 km) north of the city centre. Pop. (2000) 32,135; (2010) 36,047.