New Castle County, Delaware - Assessor's Office
The New Castle County Assessor is responsible for appraising real estate and assessing a property tax on properties located in New Castle County, Delaware. You can contact the New Castle County Assessor for:
- Paying your property tax
- Information on your property's tax assessment
- Your property tax bill
- Reporting upgrades or improvements
- Checking the New Castle County property tax due date
- Appealing your property tax appraisal
800 North French StreetThe New Castle County Assessor's Office is located in Wilmington, Delaware. Wilmington is the county seat of New Castle County, where most local government offices are located.
New Castle County Assessor Contact Information
City of Wilmington Assessor Address
City of Wilmington Department of Finance
800 North French Street
Wilmington, DE 19801 New Castle County
City of Wilmington Assessor Phone Number
(302) 576-2400
City of Wilmington Assessor's Website
New Castle County Assessor Address
New Castle County Office of Finance, Assessment Division
87 Reads Way
Wilmington, DE 19886
New Castle County Assessor Phone Number
(302) 395-5520
New Castle County Assessor's Website
Additional New Castle County Information
City of Wilmington - Property Tax Search City-specific resource
http://cityfinance1.wilmingtonde.gov/Departments/Parcel_Info.aspx
GIS Mapping (Search by Parcel ID, address, or owner name) Geographical Information System
Property Tax Search Tool Find New Castle County property tax records
New Castle County Assessor's Office Services
There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the New Castle County Tax Assessor may also serve as the New Castle County Tax Appraiser.
- The New Castle County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in New Castle County.
- The New Castle County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
- The New Castle County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in New Castle County, and work with the sheriff's office to foreclose on properties with delinquent taxes.
When contacting New Castle County about your property taxes, make sure that you are contacting the correct office. You can call the New Castle County Tax Assessor's Office for assistance at 302-395-5520. Remember to have your property's Tax ID Number or Parcel Number available when you call!
Please call the assessor's office in Wilmington before you send documents or if you need to schedule a meeting. If you have general questions, you can call the Louis L. Redding City/new Castle County Building at 302-395-8383.
Learn More
Find the tax assessor for a different Delaware county
Find property records for New Castle County
The median property tax in New Castle County, Delaware is $1,385.00
All of the New Castle County information on this page has been verified and checked for accuracy. If any of the links or phone numbers provided no longer work, please let us know and we will update this page.