New Castle, Delaware

County Seat: Wilmington · Population: 558,753

Find contact information for New Castle government offices in Delaware. The county seat is Wilmington. Below you'll find phone numbers, addresses, and websites for the assessor, treasurer, recorder, clerk, and other county departments.

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Tax Due Dates

Property tax deadlines & email reminders for New Castle

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Local Services

Title abstractors, process servers & more for New Castle

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Frequently Asked Questions

How do I contact the New Castle Assessor?

The New Castle Assessor's office handles property valuations and assessments. Find their phone number and address in the Property Records section above.

Where do I pay property taxes in New Castle?

Property tax payments are typically handled by the New Castle Treasurer's office. Check the Property Records section for contact information and online payment options.

How do I get a copy of a deed in New Castle?

Property deeds and records are maintained by the New Castle Recorder or Clerk's office. You can usually request copies in person, by mail, or through their online portal.

What are the New Castle office hours?

Office hours vary by department. Check the specific office listing above for hours, or call ahead to confirm. Many offices are closed on weekends and holidays.

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