New Castle County

Arden
Ardencroft
Ardentown
Bear
Bellefonte
Brandywine
Brookside
Claymont
Delaware City
Edgemoor
Elsmere
Glasgow
Greenville
Hockessin
Middletown
New Castle
Newark
Newport
North Star
Odessa
Pike Creek
Red Lion
Townsend
Wilmington
Wilmington Manor
HASC code :US-DE-NE
FIPS 6-4 code :10003
Capital :Wilmington
Largest city :Brandywine
Elevation :High : Brandywine 400 ft
Low : Greenville 0 ft
Population :500,265
Land Area :426 sq mi
(1,103 km²)
Density :1,174.33/sq mi
(453.41/km²)
Time zone :UTC -5
Website :http://www.co.new-castle.de.us