SDCL § 9-55-6: Composition of board--Vacancies--Terms--Officers.

The board shall consist of no less than five members to serve such terms as the governing body, by resolution, determines. The mayor, with the approval of the governing body, shall fill any vacancy for the remainder of the term vacated. A member of such board may serve more than one term. The board shall select from its members a chairperson and a secretary.