New Castle, Delaware

New Castle, Delaware
Old New Castle County Courthouse
Flag of New Castle, Delaware
Official seal of New Castle, Delaware
Location of New Castle in New Castle County, Delaware (left) and of New Castle County in Delaware (right)
Location of New Castle in New Castle County, Delaware (left) and of New Castle County in Delaware (right)
New Castle is located in Delaware
New Castle
New Castle
Location in Delaware
New Castle is located in the United States
New Castle
New Castle
New Castle (the United States)
Coordinates: 39°39′43″N 75°33′59″W / 39.66194°N 75.56639°W / 39.66194; -75.56639
CountryUnited States
StateDelaware
CountyNew Castle
Founded1640
Area
 • Total
3.52 sq mi (9.12 km2)
 • Land3.48 sq mi (9.01 km2)
 • Water0.04 sq mi (0.11 km2)
Elevation
10 ft (3 m)
Population
 (2020)
 • Total
5,551
 • Density1,596.03/sq mi (616.23/km2)
Time zoneUTC−5 (Eastern (EST))
 • Summer (DST)UTC−4 (EDT)
ZIP codes
19720-19721, 19726
Area code302
FIPS code10-50800
GNIS feature ID214379[2]
Websitenewcastlecity.delaware.gov

New Castle is a city in New Castle County, Delaware, United States. The city is located six miles (10 km) south of Wilmington and is situated on the Delaware River. As of 2020, the city's population was 5,551.[3] New Castle constitutes part of the Delaware Valley or Philadelphia metropolitan area.

  1. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved October 31, 2021.
  2. ^ "New Castle". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  3. ^ "The Delaware Census State Data Center". Stateplanning.delaware.gov. Archived from the original on December 31, 2016. Retrieved March 30, 2013.

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