What is the capital of South Dakota?

The capital of South Dakota is Pierre.

Pierre is South Dakota’s state capital and the seat of Hughes County. It stands on the east bank of the Missouri River, opposite the older community of Fort Pierre. The city was founded in 1880 and was named for Pierre Chouteau Jr., a prominent American fur trader.

When South Dakota gained statehood on November 2, 1889, Pierre was selected as the capital. Its location near the geographic center of the state helped it defeat Huron, which had also sought the distinction. The Missouri River and a major railroad crossing further supported Pierre’s early importance.

Sioux Falls is South Dakota’s largest city and commercial center, but it is not the capital. Rapid City is another prominent city, especially as a gateway to the Black Hills, while Aberdeen is an important regional center. Pierre is notable among U.S. capitals for its small population; the 2020 census recorded 14,091 residents, making it the nation’s second-least-populous state capital after Montpelier, Vermont.