S.D. Codified Laws § 38-32-9.1

Within sixty days of July 1, 2010, the council shall assign or reassign one director to each of the nine districts on the basis of residency and equity. Any director not so assigned or reassigned shall serve at large until the expiration of that director's term. During the transition interval, the council may, notwithstanding the provisions of § 38-32-2, exceed nine directors.