S.D. Codified Laws § 9-11-11 (2026)
Each first or second class municipality must be governed by a mayor and common council, a mayor and a common council with a city manager, a board of commissioners, or a board of commissioners with a city manager. Each third class municipality must be governed by a board of trustees, with or without a city manager. The present form of government of existing municipalities must continue until changed as provided by this title.
Source: SL 2024, ch 28 , § 35; SL 2025, ch 38 , § 58.