Dewey County,

South Dakot





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Online Data




Early Births, 1856-1903

Burials, Pg. 1, Pg. 2




County History

Court Case


Family Histories

Land Records

Maps and Plats



Newspapers Items


Pioneer Women




Eagle Butte Green Grass Isabel La Plant
North Ridge Butte Timber Lake * Whitehorse  


Unorganized Territory:


                                  North Dewey                 South Dewey
* County Seat

Dewey County Map

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


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



Corson County * Potter County * Stanley County * Sully County * Walworth County * Ziebach County




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