New Castle County Map
The County of New Castle is located in the State of Delaware. Find directions to New Castle County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the New Castle County population is estimated at 561,531 people. The New Castle County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Kent County, Cecil County, Kent County, Gloucester County, Salem County, Chester County, Delaware County.
Top cities include Wilmington, Newark, Middletown, Elsmere, New Castle