Bridger, South Dakota

Bridger is an unincorporated community and census-designated place (CDP) in Ziebach County, South Dakota, United States, within the Cheyenne River Indian Reservation. The population was 48 at the 2020 census. It was first listed as a CDP prior to the 2020 census.

It is in the southwest corner of the county, 1 mi north of the Cheyenne River, which forms the border with Haakon County to the south. Bridger is also 1 mi east of South Dakota Highway 34, which leads 87 mi west to Sturgis and east 86 mi to Pierre.