Vivian is an unincorporated community and census-designated place (CDP) in Lyman County, South Dakota, United States. The population was 98 at the 2020 census.
Downtown Vivian, December 2010
Record hailstone in Vivian, July 2010
Lyman County, South Dakota
Lyman County is a county located in the U.S. state of South Dakota. As of the 2020 census, the population was 3,718. Its county seat is Kennebec.
Lower Brule Indian Reservation
Confluence of the White and Missouri rivers at the Lyman–Brule county border, taken on July 4, 2022, from the International Space Station