Buffalo County, South Dakota Genealogy

United States South Dakota Buffalo County

Guide to Buffalo County, South Dakota ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.

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County Courthouse
Buffalo County Courthouse PO Box 148 Gann Valley, SD 57341-0148 Phone: 605.293.3234 Register of Deeds has birth and death records from 1905, burial records from 1941 and land records; County Treasurer has marriage records from 1887; County Clerk has divorce records from 1915, probate and court records from 1885

Buffalo County, South Dakota Record Dates

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 * width="84%" bgcolor="#e4d8e5" align="center" colspan="7" | Beginning Dates for Major County Records
 * width="12%" bgcolor="#e4d8e5" align="center" | Birth*
 * width="12%" bgcolor="#e4d8e5" align="center" | Marriage
 * width="12%" bgcolor="#e4d8e5" align="center" | Death*
 * width="12%" bgcolor="#e4d8e5" align="center" | Court
 * width="12%" bgcolor="#e4d8e5" align="center" | Land
 * width="12%" bgcolor="#e4d8e5" align="center" | Probate
 * width="12%" bgcolor="#e4d8e5" align="center" | Census
 * width="12%" align="center" |
 * width="12%" align="center" |1887
 * width="12%" align="center" |
 * width="12%" align="center" |
 * width="12%" align="center" |1885
 * width="12%" align="center" |1884
 * width="12%" align="center" |1870
 * colspan="7"|
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 * width="12%" align="center" |1870
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Record Loss
There is no known history of courthouse disasters in this county.

Boundary Changes
1864--Buffalo County was created 6 January 1864 from Brugier County was Eliminated 6 Jan 1864, and Charles Mix Counties, and unorganized territory. County seat: Gann Valley
 * Interactive Formation Boundary Map of North Dakota - shows boundary changes for South Dakota Counties
 * South Dakota Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library

Populated Places
Indian Reservation

A portion of the Crow Creek Indian Reservation is located in Buffalo County. The remaining part is in Hyde County.


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Census Records
1905, 1915, 1925, 1935, and 1945 censuses may include unique information: Ethnic Background, Maiden Name, Church Affiliation and Military Service
 * 1905 — at FamilySearch Historical Records — index and images
 * 1915 — at FamilySearch Historical Records — index and images
 * 1925 — at FamilySearch Historical Records — index and images
 * 1935 — at FamilySearch Historical Records — index and images
 * 1945 — at FamilySearch Historical Records — index and images

Land and Property Records
Online Land Records


 * Land Patent Search - index to federal patents and homesteads on the Bureau of Land Management website, some images available
 * 1796 - 1907 - U.S. General Land Office Records, 1796-1907 at Ancestry - index, info taken from Bureau of Land Management website
 * 1861 - 1936 - U.S. Homestead Records 1861-1936 at Ancestry.com - ($), index and images

Local Histories

 * Of rails and trails, a centennial journey, 1889-1989. 1989. By Barbara Speck. Dallas, Texas : Curtis Media. Online at:;.

Maps and Gazetteers

 * Interactive Formation Boundary Map of South Dakota - shows boundary changes for South Dakota Counties
 * Historical Maps and Atlases of South Dakota - maps and atlases of South Dakota

Military Records

 * 1861-1941 - at FamilySearch — index and images

Newspapers
 South Dakota Newspapers Online South Dakota Newspaper Catalogs
 * GenealogyBank - ($), contains images of South Dakota newspapers
 * Newspaper Archive - ($), contains images of South Dakota newspapers
 * Chronicling America - contains images of some South Dakota newspapers; searching tips
 * Elephind - Free; search engine that retrieves newspaper images from other free newspaper websites
 * U.S. Newspaper Directory, 1690-Present on Chronicling America - contains a list of all known newspapers and the dates they cover; once you locate a newspaper name, contact the local library to see if they have copies of the newspaper.

Probate Records
'''Online Records
 * 1800 – 1985 North Dakota and South Dakota Wills and Probate Records 1800-1985 at Ancestry.com — index and images $

Death

 * 1879 - 1955 South Dakota, Death Index, 1879-1955 at Ancestry — index($)

Websites

 * USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.