New Castle County, Delaware Genealogy

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New Castle County

Guide to New Castle County, Delaware ancestry, family history, and genealogy birth records, marriage records, death records, census records, family history, and military records.

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New Castle County, Delaware
Map of Delaware highlighting New Castle County
Location in the state of Delaware
Map of the U.S. highlighting Delaware
Location of Delaware in the U.S.
Founded August 8, 1673
County Seat Wilmington
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County Information

New Castle County, Delaware Record Dates

Beginning Dates for Major County Records[1]
Birth Marriage Death Census Land Probate
1676 1682

New Castle County, Delaware Historical Facts

New Castle County Courthouse
800 North French Street
Wilmington, DE 19801
Phone: 302-571-7545

Previously known as New Amistel County, by 31 December 1674 the name had been changed to New Castle. Clerk of Peace has marriage records from 1911. The Prothonotary has divorce and court records. Register of Wills has probate records and the Recorder of Deeds has land records. [2]

The New Castle County Government Center
87 Reads Way
New Castle, DE 19720-1648

Parent County

1673 New Castle County was created 8 August 1673 from New Amistel (old) County. County seat: Wilmington [3]


The county was named for the English city of Newcastle. The county seat is Wilmington and the county was created August 8, 1637. The County is located in the north area of the state.[4]

Boundary Changes

For animated maps illustrating Delaware County boundary changes, "Rotating Formation Delaware County Boundary Maps" (1673-1841) may be viewed for free at the website.

Record Loss

There is no known history of courthouse disasters in this county.

New Castle County, Delaware Genealogy Resources

Bible Records


Cemeteries of New Castle, Delaware online and in print
Tombstone Transcriptions Online
TombstoneTranscriptions in Print (Often more complete)
List of Cemeteries in the County
See Delaware Cemeteries for more information

The following web sites may have additional information on New Castle County cemeteries.


For tips on accessing New Castle County, Delaware Genealogy census records online, see: Delaware Census.

Church Records

Contains the church records of:
  • Wilmington: Central Presbyterian Church; First Presbyterian Church; Holy Trinity Church; St. Andrew's Episcopal Church
Swedes Church

Christina Parish was located in what is now Wilmington. A 1754 membership list is preserved in Archivum Americanum at the Consistory Court of the Archbishop of Upsal in Sweden. A copy is held at the Historical Society of Pennsylvania.[5]

Court Records

Emigration and Immigration

Large numbers of Scotch-Irish immigrants who settled in Chester County, Pennsylvania, probably arrived at the port of New Castle in the early 1700s.[6]

Ethnic, Political or Religious Groups




1638 Swedes and Finns settle at Fort Christiana (now Wilmington).[7][8] They eventually spread as far north as Philadelphia. See New Sweden wiki article for more details.
1651 Dutch build Fort Casimir and Sandhook (now New Castle City).[9][10][11] See New Netherland article for details.
1654 New Sweden captures Fort Casimir without a fight. It is renamed Fort Trinity (Trefaldighets).
1655 New Netherland returns a large army and forces all of New Sweden to submit to Dutch rule.
1664 As part of the Second Anglo-Dutch War New Netherland is surrendered to England.
1673 A new war breaks out. The Dutch send a huge armada to recapture New Netherland, but at the end of 1674 it is finally ceded to England.[12] Nieuw Amstel is renamed New Castle after the English take control.

Land and Property


Civil War

Civil War service men from New Castle County served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies that were specifically formed in New Castle County.

- Nield's Independent Battery, Delaware Light Artillery

Revolutionary War
  • A Census of Pensioners for Revolutionary or Military Services: With their Names, Ages, and Places of Residence, as Returned by the Marshalls of the Several Judicial Districts, Under the Act for Taking the Sixth Census]. 1841. Digital version at Google Books. 1967 reprint: FHL Collection 973 X2pc 1840. [See Delaware, New Castle County on page 126.]



Places / Localities

Populated Places


  • Delaware City
  • New Castle
  • Newark



  • Bellefonte
  • Elsmere
  • Middletown
  • Newport
  • Odessa
  • Smyrna
  • Townsend


  • Arden
  • Ardencroft
  • Ardentown

More information can be found at Delaware Hundreds.

  • Appoquinimink
  • Blackbird
  • Brandywine
  • Christiana
  • Mill Creek
  • New Castle
  • Pencader
  • Red Lion
  • St. George's
  • White Clay
  • Wilmington

Unincorporated Communities:

  • Bear
  • Blackbird
  • Brookside
  • Centreville
  • Christiana
  • Claymont
  • Edgemoor
  • Elmhurst
  • Glasgow
  • Greenville
  • Gwinhurst
  • Hockessin
  • Kirkwood
  • MacDonough
  • Manor
  • Marshallton
  • Minquadale
  • Montchanin
  • North Star
  • Pike Creek
  • Port Penn
  • Rockland
  • St. Georges
  • Stanton
  • Talleyville
  • Tybouts Corner
  • Wilmington Manor
  • Winterthur
  • Yorklyn

Neighboring Counties




Delaware Public Archives has placed the New Castle County Naturalizations Original petitions and other legal documents of immigrants wishing to become American citizens on-line. There is an alphabetical listing of the names and dates.The date listed  reflects the year of the file and may vary from the document displayed. The file for each individual may contain more documentation.



  • A Calendar of Delaware Wills, New Castle County, 1682-1800. New York, NY: National Society of the Colonial Dames of America, 1911; Baltimore, Maryland: Genealogical Publishing Company, 1969. (Family History Library book 975.11 S2n.)


The 1676 list of taxables has been published:

  • Dickson, Taylor L. and P.S.P. Conner. "Some Data Concerning the Taking of Wolves in New Castle County in 1676, and a Reprint of the Taxables of that Year," Publications of the Genealogical Society of Pennsylvania, Vol. 1, No. 1 (Jan. 1895):29-34. For free online access, see WeRelate.

Vital Records

See also How to order Delaware Vital Records, order electronically online $ or download an application for Delaware Birth Certificate, Marriage Certificate, Death Certificate to mail.

Societies and Libraries

Delaware Genealogical Society
Center for African American Heritage
505 N. Market Street
Wilmington, Delaware 19801-3091
302 655-7161

Jewish Historical Society of Delaware
505 North Market Street
Wilmington, DE 19801-3091

New Castle Historical Society
30 Market Street
New Castle, DE 19720
Fax: 302-322-8923

Fort Delaware Society
P.O. Box 553
33 Staff Lane, Fort DuPont State Park
Delaware City, DE 19706
302 834-1630

Winterthur Heritage Association
Winterthur Museum, Garden & Library
5105 Kennett Pike
Wilmington, DE 19735

See also a List of Delaware Archives, Libraries, Publications, Historical & Genealogical Societies

Family History Centers

Family history centers provide one-on-one assistance and free access to premium genealogical websites. In addition, many centers have free how-to genealogy classes. See family history center for more information. Search the online FHC directory for a nearby family history center.



  1. Alice Eichholz, Ancestry’s Red Book: American State, County and Town Sources, Revised ed. (Salt Lake City: Ancestry, 1992), 109-117. At various libraries (WorldCat); FHL Book 973 D27rb 1992
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), New Castle, Delaware Page 121 At various libraries (WorldCat); FHL Book 973 D27e 2002.
  3. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).
  4. Wikipedia contributors, "New Castle County," in Wikipedia: the Free Encyclopedia,,_Delaware 04/27/2017.
  5. Charles J. Stillé, "Archivum Americanum in the Consistory Court of the Archbishop of Upsal," The Pennsylvania Magazine of History and Biography, Vol. 15 (1891):482, 484-485. For free online access, see WeRelate.
  6. Wayland F. Dunaway, The Scotch-Irish of Colonial Pennsylvania (Chapel Hill, N.C.: The University of North Carolina Press, 1944), 51. Free digital version at PA's Past: Digital Bookshelf at Penn State.
  7. Amandus Johnson, "Detailed Map of New Sweden 1638-1655" in Amandus Johnson's book The Swedes on the Delaware 1638-1664 (Philadelphia: Swedish Colonial Society, 1915), 392.
  8. John A. Munroe, Colonial Delaware: A History] (Millwood, N.Y.:KTO Press, 1978) [FHL book 975.1 H2mu], 16-18. “From there they proceeded according to instructions up the Delaware and into the Christina River, the Minquas Kill to the Dutch. Here, after reconnoitering the stream, Minuit met with Indians and purchased lands from Duck Creek (the southern boundary of New Castle County) to the Schuylkill. Here too a site was picked for a settlement that was called Fort Christina. It was at the Rocks, ‘a wharf of stone’ on the Christina about two miles from the Delaware River and above the junction of the Christina and its main tributary, the Brandywine, on the east side of the present city of Wilmington.”
  9. Johnson, Detailed Map.
  10. "Fort Casimir" in Wikipedia: the Free Encyclopedia at (accessed 7 November 2008).
  11. Philip S. Klein, and Ari Hoogenboom, "A History of Pennsylvania, 2nd ed." (University Park, Penn.: Penn State Press, 1980; digitized by Google at, 11.
  12. "New Netherland" in Wikipedia: the Free Encyclopedia at (accessed 13 December 2008).