(A) Aldermanic form. The mayor and aldermen shall be elected in the form prescribed by SDCL §§ 9-8-1 et seq.
(SDCL § 9-10-4)
(B) Commission form.
(1) There shall be nine commissioners elected for a three-year, staggered term of office pursuant to SDCL § 9-10-5.
(2) At the first regular meeting in May of each year, the commissioners must elect one of their members to serve as mayor for a term of one year pursuant to SDCL § 9-10-6.