S.D. Codified Laws § 8-1-11 (2026)
Any civil township so formed by merger of townships or by separation from the original township shall be named in accordance with the expressed wish of a majority of the legal voters of the new township; but if they fail to designate a name, or the same cannot be properly given to such township, the board of county commissioners may designate a name.
Source: SDC 1939, § 58.0110; SL 1996, ch 58 , § 6.