SDCL § 18-4-2: Officers authorized to take proof or acknowledgment within circuit, county, or municipality.

The proof or acknowledgment of an instrument may be made anywhere in this state before a judge of the circuit court, a clerk of the circuit court, a magistrate of the circuit court, or a United States magistrate. Within a county or municipality for which the officer was elected or appointed, the proof or acknowledgment of an instrument may be made before a county auditor, a register of deeds, a mayor, or a municipal finance officer .