S.D. Codified Laws § 26-6-35
Foster care for person under continuing juvenile jurisdiction who is over the age of majority
Notwithstanding the provisions of §§ 26-1-1 , 26-6-6.1 , and 26-7A-101 , a child welfare agency and the Department of Corrections may provide foster care for a person over the age of majority but less than twenty-one years of age if the person is under the continuing juvenile jurisdiction of the Department of Corrections.
Source: SL 2007, ch 163, § 1.