Latitude / Longitude:
43° 49′ 31″ N, 102° 52′ 12″ W
Central (CST) (UTC-6)
Folsom is an unincorporated community in Custer County, in the U.S. state of South Dakota.
A post office called Folsom was established in 1886, and remained in operation until 1948. The community was named after Frances Folsom Cleveland, First Lady of the United States.