Dewey County, South Dakota
County Seat - Timber Lake
Dewey County comprises the eastern half of the Cheyenne River Reservation. It is bound by Corson County to the north, Walworth, Potter, and Sully counties to the east, Stanley County to the south, and Ziebach County to the west. The Missouri River flows along the entire eastern and southern boundaries of Dewey County.
Towns of Dewey County
La Plant/Parade/Ridgeview/Whitehorse/Timber Lake
Table of Contents
Dewey County Look-Ups
Dewey County Mail List
A mailing list for anyone with a genealogical
interest in Dewey County, South Dakota.