Sussex County, Delaware Genealogy

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United States
Sussex County

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

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Sussex County, Delaware
Map of Delaware highlighting Sussex 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 Georgetown
Sussex County, Delaware Courthouse.jpg
Address Administrative Office Building, 1st Floor, 2 The Circle
PO Box 589
Georgetown, DE 19947
Phone: (302) 855-7785 Sussex County Courthouse
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County Information

Sussex County, Delaware Record Dates

Beginning Dates for Major County Records[1]
Birth Marriage Death Census Land Probate
1693 1683

County Courthouse

Formerly known as Deale County, the name was changed to Sussex on 4 Dec 1682.
The Recorder of deeds has land records from 1693.
Register of Wills houses the probate records[2]

Sussex County, Delaware Historical Facts

Parent County

1673--Sussex County was created 8 August 1673 from Deale (old) County. County seat: Georgetown [3]


The county seat is Georgetown and the county was created August 8, 1683. The County is located in the south area of the state.[4]

Boundary Changes

Because of the ongoing boundary disputes between Lord Baltimore of Maryland and William Pitt of Pennsylvania, much of Sussex County (excepting a few miles inland from the coast) was also recognized as part of Maryland's Somerset County up through 1760.  Both Pennsylvania (and, after 1710, Delaware) and Maryland issued land patents for the area, sometimes in conflict with each other.

The British Crown ordered the dispute to be settled in 1760, and commissioned Charles Mason and Jermiah Dixon to survey the boundary.  In 1769, the survey was completed, defining the border between Maryland, Delaware and Pennsylvania that exists today.

The border between Sussex and Kent Counties, Delaware was set in 1683 and has not changed since then.

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.

Places / Localities

Populated Places


  • Lewes
  • Milford
  • Rehoboth Beach
  • Seaford


  • Bethany Beach
  • Bethel
  • Blades
  • Bridgeville
  • Dagsboro
  • Delmar
  • Dewey Beach
  • Ellendale
  • Fenwick Island
  • Frankford
  • Georgetown
  • Greenwood
  • HenlopenAcres
  • Laurel
  • Millsboro
  • Millville
  • Milton
  • Ocean View
  • Selbyville
  • Slaughter Beach
  • South Bethany

Hundreds: More information can be found at Delaware Hundreds.

  • Baltimore
  • Broad Creek
  • Broadkill
  • Cedar Creek
  • Dagsboro
  • Georgetown
  • Gumboro
  • Indian River
  • Lewes & Rehoboth
  • Little Creek
  • Nanticoke
  • Northwest Fork
  • Seaford

Unincorporated communities:

  • Angola
  • Argo's Corner
  • Atlanta
  • Bayard
  • Belltown
  • Broad Creek
  • Broadkill Beach
  • Cannon
  • Cedar Creek
  • Clarksville
  • Concord
  • Cool Spring
  • Coverdale
  • Fairmount
  • Fowler Beach
  • Gumboro
  • Harbeson
  • Hardscrabble
  • Hollymount
  • Hollyville
  • Jimtown
  • Johnson
  • Lincoln
  • Long Neck
  • Marshtown
  • Middleford
  • Middlesex Beach
  • Midway
  • Nassau
  • Oakley
  • Oak Orchard
  • Old Furnace
  • Pepperbox
  • Pinetown
  • Redden
  • Reliance
  • Roxana
  • St. Johnstown
  • Whitesville
  • Williamsville

Neighboring Counties


Sussex County, Delaware Genealogy Resources

Bible Records

Wiltbank Family Bible, published in Pennsylvania Magazine of History and Biography, Vol. 29, p.339, available online at Family Search.


Cemeteries of Sussex, 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 Sussex County cemeteries.


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

Church Records

Court Records

Emigration and Immigration

Ethnic, Political and Religious Groups




Land and Property


KentCaroline County, MarylandDorchester County, MarylandWicomico County, MarylandWorcester County, MarylandDE SUSSEX.PNG
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for more resources



Civil War

Naturalization and Citizenship

1804-1839, 1907-1959 Delaware, County Naturalization Records at Family Search - free




Poorhouse, Almshouse


  • 1680 -1800 Sussex County, Delaware Probate Records, online at Ancestry ($)
  • DeValinger, Leon. A Calendar of Sussex County, Delaware Probate Records, 1680-1800. Dover, Delaware: Public Archives Commission, 1964.
  • Moore, Marguerite R. indexes for Sussex 1800-1869, three volumes(Westminster, Md.: Family Line Publications, 1995-97.)




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

Georgetown Historical Society
510 S. Bedford Street
Georgetown, DE 19947
302 855-9660
302 855-1030 (Fax)

Laurel Public Library
101 E 4th St
Laurel, DE 19956
302 875-3184

Lower Delmarva Genealogical Society
(Kent and Sussex County)
Box 3602
Salisbury, Maryland 21802-3602

Sussex County Genealogical Society
c/o Rehoboth Beach Public Library
226 Rehoboth Avenue
Rehoboth Beach, DE 19971

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), Sussex, 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, "Sussex County," in Wikipedia: the Free Encyclopedia,,_Delaware 04/27/2017.