Custer County, South Dakota covers an area of approximately 1,555 square miles with a geographic center of 43.69170039°(N), -103.40990496°(W).
These are the far north, south, east, and west coordinates of Custer County, South Dakota, comprising a rectangle that encapsulates it. Please note that not all coordinates inside this rectangle will fall inside of Custer County, South Dakota, as it (most likely) doesn't fill up the entire rectangle.
According to data gathered by the Shuttle Radar Topography Mission. The lowest elevation in Custer County is 755 meters (2,477 feet). This ranks Custer County 64th in terms of lowest elevations when compared to a total of 66 counties in South Dakota.
Custer County's highest elevation is 2,122 meters (6,962 feet) which ranks it 3rd in terms of highest elevations when compared to a total of 66 counties in South Dakota.