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Cities and Towns in the United States > State Delaware > New Castle County
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New Castle County is located in the northern part of the state of Delaware with a diverse mix of urban, suburban, and rural areas. The county boasts several attractions, including the Wilmington and Western Railroad, the Winterthur Museum, Garden, and Library, and Bellevue State Park. For history enthusiasts, landmarks such as the Old Swedes Church and Fort Christina State Park are worth exploring. Additionally, the county is known for hosting the annual Italian Festival and Delaware Shakespeare Festival. With its rich history, beautiful landscapes, and vibrant community, New Castle County offers a variety of experiences for visitors and residents alike.

Get the contact information for all cities and towns in this county. Find general information, official websites, email, phone numbers, addresses, and much more.

New Castle County administration contact details

New Castle County administration contact details
Address 87 Reads Way, New Castle, DE 19720
County seat Wilmington
Phone number 302-395-5555
Email address [email protected]
Official website https://www.newcastlede.gov
County clerk Lisa M. Brown
County fiscal officer Michael Coupe
County permits office or building department contact details 302-395-5400, [email protected]

New Castle County, DE Sheriff's Office and Jail Information

Number of prisons1
Jail namesHoward R. Young Correctional Institution
Sheriff office address800 N. French Street, 5th Floor, Wilmington, DE 19801
Sheriff office phone number302-395-8450
Inmate search informationTo locate an inmate, visit the Delaware Department of Correction's online inmate locator or contact the Howard R. Young Correctional Institution directly for assistance.
Clerk of Court nameKen Madden
Clerk of Court address500 North King Street, Wilmington, DE 19801

New Castle County (DE) Statistics

Population5,285
Area3 sq mi
Density1,762 /sq mi
Altitude7 ft
Median Household Income$68,058
Poverty rate11%
Unemployment rate4%
Educational Attainment (Bachelor's Degree or higher)38%

Environmental risk in New Castle County, DE

Overall riskRelatively Moderate
Expected Annual LossRelatively Moderate
Social VulnerabilityRelatively Moderate
Community ResilienceVery High
Avalanche RiskNot Applicable
Coastal Flooding RiskRelatively Moderate
Cold Wave RiskNo Rating
Drought RiskRelatively Low
Earthquake RiskRelatively Low

Data obtained from the FEMA National Risk Index.

counties surrounding New Castle

Salem 15 milesCecil 16.5 milesDelaware 26.6 miles
Chester 27.9 milesGloucester 28.2 milesCumberland 32.2 miles

List of cities and towns in New Castle County by population size

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Birth certificate - U.S. Vital Records