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New Castle County

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New Castle County

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Also known as New Castle County, Delaware, New Castle County, DE

county in Delaware, United States

AI overview

New Castle County is the northernmost and most populous county in Delaware, located in the United States. It is the state's economic and political center, home to the capital city of Dover and a significant portion of Delaware's population and industry.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Named after
New Castle
Located in
Delaware
Capital
Wilmington
Population
556779
Area
1278
Shares border with
Cecil County
Official website
www.co.new-castle.de.us
Image
Habs new castle county court house.jpg
Households
209431
Show 12 more facts
Commons category
New Castle County, Delaware
inception
1664-00-00
water as percent of area
13.8
native label
New Castle County
social media followers
11738
different from
New Castle
per capita income
38965
street address
800 North French Street, Wilmington, DE 19801
Sources (13)

via Wikidata · CC0

~27 min read

Encyclopedic overview

New Castle County is the northernmost of the three counties of the U.S. state of Delaware (New Castle, Kent, and Sussex). As of the 2020 census, the population was 570,719, making it the most populous county in Delaware, with nearly 60% of the state's population of 989,948. The county seat is Wilmington, which is also the state's most populous city. New Castle County is included in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area. The county is named after William Cavendish, 1st Duke of Newcastle (c. 1593–1676). New Castle County has the highest population and population density of any Delaware county, and it is the smallest county in the state by area. It has more people than the other two counties, Kent and Sussex, combined. It is also the most economically developed of the three.

History

Excerpted from Wikipedia’s “New Castle County” article, available under the CC BY-SA 4.0 licence.

Gallery (11)

On the map