Dewey County

US States / O-U / South Dakota / Dewey County

Dewey County is named for W P Dewey, who was a pioneer in the region.


Surrounding County Courthouses: 

N – Corson County

E – Walworth CountyPotter County and Sully County

S – Sully CountyStanley County and Ziebach County

W – Ziebach County


Created:  January 8, 1883                      Map of South Dakota highlighting Dewey County

County Seat:

Timber Lake  1910 – present


County Courthouse – Timber Lake


Location:  710 C Street / 8th Street

Built:   1959 – 1960

Style:  Modern

Architect:  Marion E Smith

Contractor:  Hughes-Johnson Company Inc.


Description:The building faces west and is a one story light buff colored brick and concrete structure. The building is located on spacious landscaped grounds in the center of Timber Lake. The west front has a small canopy over the entrance supported by two brick supports. The east side has has a rectangular north-south section. The roof is hipped with a wide overhang.


History: Although created in 1883, the county was not organized until 1910. The first courthouse was the old two story wood frame Land Office building in Timber Lake built in 1911 and which was used as the county office and became the courthouse in 1922. The second and present courthouse was constructed in 1959 to 1960.




County Courthouse – Timber Lake 
















Photos taken 2006, 2010 and 2013