S.D. Codified Laws § 34A-5-21.2 (2026)
To serve as a trustee of a sanitary district that has one hundred or more residents, the person shall be a resident of the sanitary district. To serve as a trustee of a sanitary district with less than one hundred residents, a person shall be a resident of the sanitary district or a United States citizen who owns real property within the boundaries of the sanitary district.
Source: SL 1988, ch 288 , § 2; SL 2011, ch 165 , § 89; SL 2019, ch 160 , § 2.