S.D. Codified Laws § 46A-3A-13 (2026)
If a municipality is included within the boundaries of a proposed water development district, the municipality constitutes a separate election district. The portion of any county that is wholly or partially included within the boundaries of a proposed water development district, and which is outside the corporate limits of a municipality, constitutes a separate election district. An election district may not become part of a water development district unless at least sixty percent of the votes cast in the election are favorable.
Source: SL 1984 (SS), ch 1 , § 13F; SL 2025, ch 186 , § 15.