Wilmington, Delaware

Wilmington
Etymology: Named after Spencer Compton, Earl of Wilmington
Nickname(s): 
Corporate Capital of the World, Chemical Capital of the World
Motto: 
In the middle of it all
Location within New Castle County
Coordinates: 39°44′45″N 75°32′48″W / 39.74583°N 75.54667°W / 39.74583; -75.54667
CountryUnited States
StateDelaware
CountyNew Castle
SettledMarch 1638
Incorporated1731
Borough Charter1739
City CharterMarch 7, 1832
Named afterSpencer Compton, 1st Earl of Wilmington
Government
  TypeCouncil-mayor
  MayorJohn Carney (D)
Area
  City
17.19 sq mi (44.52 km2)
  Land10.89 sq mi (28.22 km2)
  Water6.29 sq mi (16.30 km2)
  Urban
213.35 sq mi (552.58 km2)
  Metro
1,103.86 sq mi (2,859 km2)
Elevation
92 ft (28 m)
Highest elevation

(Mount Salem Hill)
330 ft (100 m)
Population
 (2020)
  City
70,898
  Density6,510.38/sq mi (2,512.48/km2)
  Urban
484,926 (US: 87th)
  Urban density2,272.91/sq mi (877.57/km2)
  Metro
723,993 (US: 82nd)(Wilmington Metropolitan Division)
  Metro density655.87/sq mi (253.23/km2)
Time zoneUTC−5 (EST)
  Summer (DST)UTC−4 (EDT)
ZIP Codes
19801–19810, 19850, 19880, 19884–19886, 19890–19899
Area code302
FIPS code10-77580
GNIS feature ID214862
AirportWilmington Airport
Major highways
Commuter rail
Websitewilmingtonde.gov

Wilmington is the most populous city in the U.S. state of Delaware. The city was built on the site of Fort Christina, the first Swedish settlement in North America. It lies at the confluence of the Christina River and Brandywine Creek, near where the Christina flows into the Delaware River. It is the county seat of New Castle County and one of the major cities in the Delaware Valley metropolitan area. Wilmington was named by Proprietor Thomas Penn after his friend Spencer Compton, 1st Earl of Wilmington, who was prime minister during the reign of George II of Great Britain.

As of the 2020 census, the city's population was 70,898. Wilmington is part of the Delaware Valley metropolitan statistical area (which also includes Philadelphia, Reading, Camden, and other urban areas), which had a population of 6.245 million residents in 2020 and is the seventh-largest metropolitan region in the nation, and a combined statistical area population of 7.366 million.