Sioux County, Iowa Genealogy

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

County Facts
County seat: Orange City
Organized: January 1, 1860[1]
Parent County(s): Unorganized territory[2]
Neighboring Counties
Cherokee  • Lyon  • O'Brien  • Osceola  • Plymouth  • Lincoln (SD)  • Union (SD)
See County Maps
Iowa, Sioux County Courthouse.png
Location Map
Iowa Sioux Map.png

County Information[edit | edit source]

Description[edit | edit source]

Sioux County was named for the Sioux people and is located in northwestern Iowa.[3]

County Courthouse[edit | edit source]

Sioux County Courthouse
210 Central Ave SW
Orange City, IA 51041
Phone: 712-737-2286
Sioux County Website

Sioux County, Iowa Record Dates[edit | edit source]

Information for this chart was taken from various sources, often containing conflicting dates. This information should be taken as a guide and should be verified by contacting the county and/or the state government agency.

Known Beginning Dates for Major County Records[4]
Birth Marriage Death Court Land Probate Census
1880 1870 1880 1870 1856 1870 1847
* Statewide registration started for births in July 1880 and for deaths January 1891. General compliance by 1924.

Record Loss[edit | edit source]

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

Boundary Changes[edit | edit source]

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]

  • Settlers
  • Sheridan
  • Sherman
  • Sioux
  • Washington
  • Welcome
  • West Branch

History Timeline[edit | edit source]

Resources[edit | edit source]

Bible Records[edit | edit source]

Listed below are resources for Bible records specific to Sioux County. To find more resources, go to the Iowa Bible Records page.

Biographies[edit | edit source]

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

Cemeteries[edit | edit source]

Cemeteries of Sioux County, Iowa online and in print
Tombstone Transcriptions Online
Tombstone Transcriptions in Print (Often more complete)
List of Cemeteries in the County
See Iowa Cemeteries for more information.


Census Records[edit | edit source]

Iowa recorded not only federal, but state censuses for several in-between years as well. For more information, see the very informative Iowa Census article.

Historical populations
Census Pop.
1860 10
1870 576 5660.0%
1880 5,426 842.0%
1890 18,370 238.6%
1900 23,337 27.0%
1910 25,248 8.2%
1920 26,458 4.8%
1930 26,806 1.3%
1940 27,209 1.5%
1950 26,381 −3.0%
1960 26,375 −0.0%
1970 27,996 6.1%
1980 30,813 10.1%
1990 29,903 −3.0%
2000 31,589 5.6%
2010 33,704 6.7%
Source: "".

State Census

Church Records[edit | edit source]

Most church records are held by individual churches. Some denominations are gathering their records into a central repository. For more information about these major repositories, see Iowa Church Records.


Court Records[edit | edit source]

Directories[edit | edit source]

Emigration and Immigration[edit | edit source]

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]

Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. They include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See Iowa Land and Property for information about early Iowa land grants. After land was transferred to private ownership, transactions were usually recorded and housed at the county courthouse.

Local Histories[edit | edit source]

Local histories are available for Sioux County, which may include biographies, church, school and government history, and military information. For more information about local histories, see Iowa Local Histories.

Maps and Gazetteers[edit | edit source]

County and state maps, historical and more current, are valuable research tools. For online maps and collections in libraries and societies, see Iowa Maps. Historical maps may be especially useful.

Lincoln CountyUnion CountyLyon CountyOsceola CountyO'Brien CountyCherokee CountyPlymouth CountyIA SIOUX.PNG
Click a neighboring county
for more resources

Migration[edit | edit source]

Military Records[edit | edit source]

Multiple Wars

Civil War

Naturalization and Citizenship[edit | edit source]

Please see the Iowa Naturalization and Citizenship page for state-wide information.

Online Naturalization Indexes and Records

Newspapers[edit | edit source]

Obituaries[edit | edit source]

Other Records[edit | edit source]

Periodicals[edit | edit source]

Probate Records[edit | edit source]

In most counties in Iowa, probate records have been kept by the county judge. They include wills, fee books, claim registers, legacy records, inheritance records, probate ticklers, and dockets. The records are available at the county courthouse.

School Records[edit | edit source]

Social Security Records[edit | edit source]

Tax Records[edit | edit source]

Iowa tax records complement land records and can supplement the years between censuses. Iowa's unique Old Age Assistance tax gives names, addresses and birth years. There may be gaps of several years. For more information, see the wiki page Iowa Taxation.

Online Tax Indexes and Records

Vital Records[edit | edit source]

Vital Records consist of births, marriages, divorces, and deaths recorded by civil officials on registers, certificates, and other documents. Copies or extracts may be purchased from the Iowa Department of Public Health or the County Clerk's office. See also Iowa Vital Records.

Birth[edit | edit source]

Marriage[edit | edit source]

Death[edit | edit source]

Divorce[edit | edit source]

Research Facilities[edit | edit source]

Archives[edit | edit source]

Listed below are archives in Sioux County. For state-wide library facilities, see Iowa Archives and Libraries.

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

Libraries[edit | edit source]

Listed below are libraries in Sioux County. For state-wide library facilities, see Iowa Archives and Libraries.

Alton Public Library
605 10th Street
Alton, IA 51003

Sioux Center Public Library
102 S. Main Avenue
Sioux Center, IA 51250

Hospers Public Library
213 Main Street
P.O. Box 6
Hospers, Iowa 51238

Hull Public Library
1408 Main Street
Hull, IA 51239

Museums[edit | edit source]

Sioux City Public Museum
607 4th Street
Sioux City, IA 51101

Dutch American Heritage Museum
120 3rd Street SW
Orange City, IA 51041

Societies[edit | edit source]

Listed below are societies in Sioux County. For state-wide genealogical societies, see Iowa Societies.

Greater Sioux County Genealogical Society
c/o Sioux Center Public Library
102 So. Main Ave
Sioux Center, Iowa 51250

Hawarden Historical Society
PO Box 68
Hawarden, IA 51023

Websites[edit | edit source]

  • Sioux County at Cyndi's List - a comprehensive, categorized & cross-referenced list of links that point you to genealogical research sites online
  • Sioux County at Genealogy Trails - volunteer transcriptions of genealogical and historical data
  • Sioux County at Iowa USGenWeb - free online resources for genealogical research
  • Sioux County at Iowa USGenWeb Archives - free online data for genealogical research
  • Sioux County at Linkpendium - genealogy and family history
  • State Historical Society of Iowa — select from research collection topics
  • State Library of Iowa — electronic depository of documents intended for the general public produced by Iowa agencies
  • The Iowa Heritage Digital Collection — digital images from a variety of Iowa cultural institutions
  • FamilySearch Catalog – The FamilySearch catalog contains descriptions and access information for all genealogical materials (including books, online materials, microfilm, microfiche, and publications) in their collection.  Use Historical Records to search for specific individuals in genealogical records.

Research Guides[edit | edit source]

References[edit | edit source]

  1. Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library; accessed July 27, 2021.
  2. Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library; accessed July 27, 2021.
  3. Wikipedia contributors, "Sioux, Iowa," in Wikipedia: the Free Encyclopedia, ",_Iowa."
  4. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Iowa.At various libraries (WorldCat); FHL Book 973 D27e 2002.
  5. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Iowa.At various libraries (WorldCat); FHL Book 973 D27e 2002.
  6. Wikipedia contributors, "Sioux County, Iowa," in Wikipedia: the Free Encyclopedia,, accessed 31 October 2019.