S.D. Codified Laws § 12-9-21

Any personally identifiable information filed pursuant to this chapter with the Office of the Secretary of State by or on behalf of any candidate for the office of judge of the circuit court or a justice of the Supreme Court subject to a retention election is not open to public inspection. For purposes of this section, the term, personally identifiable information, means any home address, home or personal telephone number, or personal email address. The county of residence of the candidate for the office of judge or justice subject to a retention election is a public record.