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Each source below is verified and links to an official portal.

Criminal & Court Records

CT
Court Records | Civil
Criminal & Court Records
Official Free
Delaware State Courts statewide database of Court of Common Pleas, Superior Court, and Justice of the Peace civil court dockets, including civil actions, family, involuntary commit, personal injury, subrogation, debt, guardianship, tax case records, and more.
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Property & Tax Records

PR
Property | Parcel Search
Property & Tax Records
Official Free
New Castle County parcel search database.
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PR
Recorded Documents
Property & Tax Records
Official Free
Recorder of Deeds for New Castle Count recorded document search.
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PR
Permits
Property & Tax Records
Official Free
New Castle County permit search.
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PR
Tax Maps
Property & Tax Records
Official Free
New Castle County Assessor tax maps in pdf format.
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Vital Records

VR
Marriage Licenses
Vital Records
Official Free
Information from the New Castle Clerk of the Peace on how to order certified copies of marriage or civil union licenses.
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Business, Voter & Other

BZ
Historic Markers
Business, Voter & Other
Official Free
State of Delaware archives list of historic markers in New Castle County.
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BZ
New Castle County
Business, Voter & Other
Official Free
New Castle County official website.
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BZ
Crime Map
Business, Voter & Other
Official Free
New Castle interactive crime incident mapping by community or crime type.
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BZ
Wills
Business, Voter & Other
Official Free
New Castle County Register of Wills database of Wills on file.
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BZ
Projects
Business, Voter & Other
Official Free
Find status on development plans, Board of Adjustment applications, RPTAC Applications and zoning verifications that are being or have been reviewed by New Castle County.
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BZ
Contractor Licenses
Business, Voter & Other
Official Free
New Castle County Land Use department database of licensed contractors.
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Frequently Asked Questions

Go to the Prothonotary for court records in New Castle County. For online case lookups, use Delaware Courts — it covers Delaware Superior Court cases statewide.
For deeds, mortgages, and liens, go to the Recorder of Deeds. For property values and assessment data, go to the County Assessment Office. For tax bills and payments, go to the County Treasurer.
Delaware handles vital records at the state level through Delaware DHSS Office of Vital Statistics. Marriage licenses are issued locally by the Clerk of the Peace in New Castle County.
New Castle County has partial online coverage — 4 databases are listed on this page, covering property records, and business filings. Other record types may require an in-person visit or written request.
For court records, yes — Delaware Courts covers New Castle County. For property and land records, you still need the Recorder of Deeds in New Castle County directly.
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