New Castle County, Delaware Genealogy

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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, United States Genealogy
Map of the U.S. highlighting Delaware
Location of Delaware in the U.S.
Founded August 8, 1673
County Seat Wilmington

County Information[edit | edit source]

Description[edit | edit source]

  • 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.[1]
  • Previously known as New Amistel County, by 31 December 1674 the name had been changed to New Castle.

County Courthouse[edit | edit source]

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Wikipedia has more about this subject: New Castle County, Delaware

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

  • Clerk of Peace has marriage records from 1911.
  • The Prothonotary has divorce and court records.
  • Register of Wills has probate records
  • Recorder of Deeds has land records. [2]
  • The New Castle County Government Center
    87 Reads Way
    New Castle, DE 19720-1648

Most records of the older county records have been transferred to the Delaware Public Archives

New Castle County, Delaware[edit | edit source]

Known Beginning Dates for Major Records[3]
Marriage Court Land Probate Census
abt 1861 1744 1919 1676 1671 1680 1782
*Statewide registration was 1861-1863, then reinacted in 1881. General compliance by 1921.

Record Loss[edit | edit source]

The British army confiscated many county records during the Revolutionary War. Most were eventually returned, but some were never recovered.[4]

Boundary Changes[edit | edit source]

  • Parent County: New Castle County was created 8 August 1673 from New Amistel (old) County.
  • County seat: Wilmington [5]

Populated Places[edit | edit source]

For a complete list of populated places, including small neighborhoods and suburbs, visit Hometown Locator. The following are the most historically and genealogically relevant populated places in this county:[6]

Unincorporated communities
Census-designated places

New Castle County

History Timeline[edit | edit source]

1638 Swedes and Finns settle at Fort Christiana (now Wilmington).[7][8] They eventually spread as far north as Philadelphia. See New Sweden Genealogy wiki article for more details.
1651 Dutch build Fort Casimir and Sandhook (now New Castle City).[9][10][11] See New Netherland Genealogy 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.

Resources[edit | edit source]

Bible Records[edit | edit source]

Biographies[edit | edit source]

Business, Commerce, and Occupations[edit | edit source]

Cemeteries[edit | edit source]

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.

Census Records[edit | edit source]

Historical populations
Census Pop.
1790 19,688
1800 25,361 28.8%
1810 24,429 −3.7%
1820 27,899 14.2%
1830 29,720 6.5%
1840 33,120 11.4%
1850 42,780 29.2%
1860 54,797 28.1%
1870 63,515 15.9%
1880 77,716 22.4%
1890 97,182 25.0%
1900 109,697 12.9%
1910 123,188 12.3%
1920 148,239 20.3%
1930 161,032 8.6%
1940 179,562 11.5%
1950 218,879 21.9%
1960 307,446 40.5%
1970 385,856 25.5%
1980 398,115 3.2%
1990 441,946 11.0%
2000 500,265 13.2%
2010 538,479 7.6%
Source: "".

Territory and State Census Records[edit | edit source]

Federal Census Records[edit | edit source]

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

Church Records[edit | edit source]

Contains 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.[13]

List of Churches and Church Parishes

Court Records[edit | edit source]

Synopsis of Delaware Courts

Directories[edit | edit source]

Emigration and Immigration[edit | edit source]

Large numbers of Scotch-Irish immigrants who settled in Chester County, Pennsylvania Genealogy, probably arrived at the port of New Castle in the early 1700s.[14]

Ethnic, Political, and Religious Groups[edit | edit source]

Funeral Homes[edit | edit source]

Genealogies[edit | edit source]

Guardianship[edit | edit source]

Land and Property Records[edit | edit source]

Local Histories[edit | edit source]

Online County Histories

Maps and Gazetteers[edit | edit source]

KentKent County, MarylandCecil County, MarylandChester County, PennsylvaniaDelaware County, PennsylvaniaGloucester County, New JerseySalem County, New JerseyDE NEW CASTLE.PNG
Click a neighboring county
for more resources

Migration[edit | edit source]

Military Records[edit | edit source]

American Revolution[edit | edit source]

  • 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.]

Civil War[edit | edit source]

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 (Union)

World War I[edit | edit source]

World War II[edit | edit source]

Naturalization and Citizenship[edit | edit source]

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.

Newspapers[edit | edit source]

Obituaries[edit | edit source]

Other Records[edit | edit source]

Periodicals[edit | edit source]

Probate Records[edit | edit source]

  • 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.)

School Records[edit | edit source]

Tax Records[edit | edit source]

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[edit | edit source]

Birth[edit | edit source]

Download an application for Delaware Birth Certificate to mail

Marriage[edit | edit source]

Death[edit | edit source]

Divorce[edit | edit source]

Research Facilities[edit | edit source]

Archives[edit | edit source]

Family History Centers[edit | edit source]

Family History Center and Affiliate Library Locator map - search for local Family History Centers or Affiliate Libraries

  • Family History Centers provide one-on-one assistance, free access to center-only databases, and to premium genealogical websites.
  • FamilySearch Affiliate Libraries have access to most center-only databases, but may not always have full services normally provided by a family history center.

Local Centers and Affiliate Libraries

Societies, Libraries, and Museums[edit | edit source]

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

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

Websites[edit | edit source]

Research Guides[edit | edit source]

References[edit | edit source]

  1. Wikipedia contributors, "New Castle County," in Wikipedia: the Free Encyclopedia,,_Delaware 04/27/2017.
  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. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), New Castle County, Delaware. Page 121 At various libraries (WorldCat); FHL Book 973 D27e 2002; Alice Eichholz, ed. Ancestry’s Red Book: American State, County, and Town Sources, Third ed. (Provo, Utah: Ancestry, 2004), 118.
  4. Hancock, Harold. "Delaware's Captured Colonial Records." Delaware History Vol. 9, No. 4 (October 1961).
  5. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).
  6. Wikipedia contributors, "New Castle County," in Wikipedia: the Free Encyclopedia,,_Delaware, accessed 24 October 2018.
  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).
  13. 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.
  14. 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.