Sioux County, North Dakota Genealogy

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United States Gotoarrow.png North Dakota Gotoarrow.png Sioux County
link= Dakota_Online_Genealogy_Records North Dakota
Online Records

Sioux County, North Dakota genealogy and family history research page. Guide to genealogy, history, and courthouse sources including birth records, marriage records, death records, census records, wills, deeds and land records, Civil War records, family histories, cemeteries, churches, tax records, newspapers, and obituaries.

Sioux County, North Dakota
Map of North Dakota highlighting Sioux County
Location in the state of North Dakota
Map of the U.S. highlighting North Dakota
Location of North Dakota in the U.S.
Founded September 3, 1914
County Seat Fort Yates
Address Sioux County Courthouse
300 2nd Avenue
Fort Yates, ND 58538
Phone: 701.854.3853
Sioux County Website

County Courthouse

Clerk District Court has marriage records from 1916,
burial, divorce, probate, court and land records[1]


Parent County

1914--Sioux County was created 3 September 1914 from Standing Rock Reservation. County seat: Fort Yates [2]

Boundary Changes

Record Loss


Populated Places

Indian Reservation

A portion of the Standing Rock Indian Reservation is in Sioux County. The remainder of the reservation is in Corson County, South Dakota

Neighboring Counties

Adams | Emmons | Grant | Morton | South Dakota counties: Campbell | Corson | Perkins




  • 1915
  • 1920
  • 1925
  • 1930




When the United States acquired North Dakota, most of the land became available for homesteading or purchase from the federal government. For more information on this, see North Dakota Land and Property.

After land was transferred from the government to private owners, the registrar of deeds in each county recorded the land transactions in the form of deeds and mortgages.

Local Histories

Local histories are available for Sioux County, North Dakota Genealogy. County histories may include biographies, church, school and government history, and military information. For more information about local histories see the wiki page section North Dakota Local Histories.




Additional newspapers abstracts can sometimes be found using search phrases such as Sioux County, North Dakota Genealogy newspapers in online catalogs like:


Probate records of North Dakota are at the county clerk's office.


Tax records are at the county treasurer's, auditor's or clerk's office, or the state archives.

Vital Records

Vital Records (birth, marriage, death, and divorce records) may be recorded on registers, certificates, or other documents at the county clerk's office.

Societies and Libraries

Family History Centers

Web Sites


  1. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Sioux County, North Dakota. Page 526 At various libraries (WorldCat); FHL Book 973 D27e 2002.
  2. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).