Yankton, South Dakota Yankton, South Dakota Yankton is a city in, and the county seat of, Yankton County, South Dakota, United States. The population was 14,454 at the 2010 census. Yankton is the principal city of the Yankton Micropolitan Statistical Area, which includes the entirety of Yankton County, and which had an estimated population of 22,662 as of July 1, 2017. Yankton was the first capital of Dakota Territory. It is named for the Yankton tribe of Nakota (Sioux) Native Americans; Yankton is derived from the Nakota word "I-hank-ton-wan" ("the end village"). Yankton is located on the Missouri River just downstream of the
Native American civil rights still had anti-peyote laws, only five did not provide exemptions for Indians to use peyote ritually." These were amended under the pressure from the Native American Church member if the members showed proof that they were at least 25 percent Native American. The states laws were generally similar to those of South Dakota, which says that "when used as a sacrament in services of the Native American Church in a natural state which is unaltered except for drying or curing or slicing", peyote use is permitted. In 1978 the American Indian Religious Freedom Act there was mention of protection for