Welcome to South Dakota Genealogy Trails

Dewey County,
South Dakot

Our goal is helping you find your ancestors by placing data online for the Free use of all researchers. 
We want to hear about you and the history of your ancestors. We need help with contributions of your data, history and stories to make this a great site for research.  Everything is helpful: Obituaries, Biographies, Marriage/Birth/Death/Burial records, County History data, etc. Any of the "raw" data YOU used to build your family tree (rather than the tree or gedcom itself)

  As data becomes available, we put it online on its corresponding county's page.  Information will be posted as fast as we can find, type and/or receive it.  We welcome your feedback and comments, and of course, your data contributions.
We're very sorry, but until we get volunteers to join our group as hosts, there is no one to answer your research questions on this county. When we come across data pertaining to this county, we will add that data to this sites.
We don't have access to any records otherwise and cannot help you do your research.
Until then, Best of Luck!


This County is available for adoption!

We're looking for people to put genealogical and historical data online for the free use of all researchers, visit our Volunteer Information page and then email Kim


Eagle Butte

Green Grass


La Plant

North Ridge Butte

Timber Lake *



Unorganized Territory:

                                  North Dewey

                South Dewey

* County Seat



Early Births, 1856-1903

Burials, Pg. 1, Pg. 2




County History

Court Case


Family Histories

 Family Websites

Land Records

Maps and Plats



 Native Americans

 Newspapers Items


Pioneer Women





Featured Updates


 Pioneer Women

 WW II Enlistments


Dewey County Map

County Seat: Timber Lake
Year Organized: 1873
Square Miles: 2,303


Corson County * Potter County * Stanley County * Sully County * Walworth County * Ziebach County
(All of the above counties are up for adoption)

A Little About Dewey County
Almost the entire county lies in the Cheyenne River Indian Reservation. The balance of the county, along its extreme northern county line, lies in the Standing Rock Indian Reservation. It is one of five South Dakota counties that lie entirely on Indian reservations.

Courthouse info:
PO Box 277
County Courthouse
Timber Lake, SD 57656-0277
Phone: (605) 865-3672


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