Sponsored Listings:
Eagle Butte Post Office
121 Main St
Eagle Butte, South Dakota 57625
Isabel Post Office
200 Main St
Isabel, South Dakota 57633
Lantry Post Office
1 N Highway 212
Lantry, South Dakota 57636
Ridgeview Post Office
1 Highway 212
Ridgeview, South Dakota 57652
Timber Lake Post Office
801 Main St
Timber Lake, South Dakota 57656
Trail City Post Office
130 N Main St
Trail City, South Dakota 57657
Whitehorse Post Office
500 Main St
Whitehorse, South Dakota 57661
Dewey County
There are 7 US Post Offices in Dewey County serving a total of 6,224 residents equating to 889 residents per post office. It's estimated that approximately 9,934 packages are handled across the 7 county post offices annually. Dewey County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 5,301. Its county seat is Timber Lake. The county was created in 1883 and organized in 1910. It was named for William P. Dewey, Territorial surveyor-general from 1873 to 1877. 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 are contained within Indian reservations."