Hot Springs (Lakota: mni kȟáta; "hot water") is a city in and county seat of Fall River County, South Dakota, United States. As of the 2010 census, the city population was 3,711. In addition, neighboring Oglala Lakota County contracts the duties of Auditor, Treasurer and Register of Deeds to the Fall River County authority in Hot Springs.
Hot Springs is located at 43°26′N 103°29′W, in Fall River County at the southern edge of South Dakota's Black Hills. The Fall River runs through the city.
According to the United States Census Bureau, the city has a total area of 3.61 square miles (9.35 km2), all of it land. Hot Springs has been assigned the ZIP code 57747 and the FIPS place code 30220.
The Sioux and Cheyenne people had long frequented the area, appreciating its warm springs. According to several accounts, including a ledger art piece by the Oglala Lakota artist Amos Bad Heart Bull, Native Americans considered the springs sacred. European settlers arrived in the second half of the 19th century. They first named the city "Minnekahta" after its Lakota name.