New Castle County, Delaware

New Castle County is a county in the state of Delaware in the United States. The county is in the north part of the state. The county seat is Wilmington. New Castle County had 570,719 people in 2020.

New Castle County, Delaware Media

• Chesapeake and Delaware Canal eastern entrance.jpg

  Chesapeake and Delaware Canal

• 2022-07-20 13 56 33 View south along Interstate 95 (Delaware Turnpike) from the overpass for the ramp to southbound Delaware State Route 1 and Delaware State Route 7 (Korean War Veterans Memorial Highway) in Christiana, New Castle County, Delaware.jpg

  I-95/Delaware Turnpike southbound in New Castle County

• Hindu Temple Delaware Pic -2.jpg

  Hindu Temple of Delaware

• St. Anthony of Padua Roman Catholic Church

• Wilmington Delaware skyline.jpg

  Skyline of downtown Wilmington, Delaware and the Christina River in December 2006

• Newark DE Main Street.jpg

  Main Street, Newark Delaware

• Middletown DE.jpg

  Middletown Delaware's four corners at the main intersection of the town.