Edgemont is a city in Fall River County, South Dakota, United States. The population was 774 at the 2010 census. The city lies on the far southern edge of the Black Hills in southwestern South Dakota.
Edgemont is a crew change point for BNSF freight trains in the Gillette, Wyoming-Alliance, Nebraska division.
Edgemont had its start in 1890 with the building of the Burlington Railroad through that territory.
In 2012, the White Draw Fire burned eight miles northeast of Edgemont. On July 1, 2012, an airplane fighting the fire crashed near town, killing four military personnel and injuring two.
On the morning of January 17, 2017, a BNSF Railway westbound train struck and killed two roadway workers, including the watchman/lookout. The accident occurred at milepost 477, on the Black Hills subdivision, in Edgemont.
Edgemont is located at 43°17′58″N 103°49′44″W (43.299453, -103.828966).
According to the United States Census Bureau, the city has a total area of 0.97 square miles (2.51 km2), all land.
The city lies at the intersection of US Highway 18 and South Dakota Highway 471. Its closest neighbors are Burdock and Dewey to the northwest, Hot Springs to the northeast, and Provo and Rumford to the south.
Edgemont lies just to the south of the Elk Mountains, a small range that is part of the Black Hills.
Edgemont Public Schools are part of the Edgemont School District. The district has one elementary school and one high school.