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South Dakota flag South Dakota (SD)

Eligibility

Age: 18 (may register at 17 if turning 18 by election day)

ID Requirements

To Register: SD driver's license or non-driver ID number; if no DL, last 4 of SSN. If neither, applicant must provide a personal identification affidavit facilitated by the registration examiner.

To Vote: Photo ID required (free voter ID available)

Registration Methods

  • Online: This state does not offer online voter registration. Residents must register by mail or in person.
  • Mail: Residents can register to vote by completing a paper registration form and submitting it by mail to the appropriate election office.
  • In Person: Residents can register to vote by visiting a designated government office, such as a county clerk's office or DMV, and completing a registration form on site.

Early Voting

In-person absentee voting available at county auditor offices 46 days before election.

Mail-In / Absentee Voting

No-excuse absentee voting by mail available for all registered voters.

Felony Voting Rules

Rights restored upon completion of sentence (incarceration). People on parole or probation for a felony may not vote.

Documentation Needed

  • Valid photo ID or signed affidavit

Recent News

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Sources

Pending Legislation

  • SB 175 (2026) Would require documentary proof of citizenship for voter registration Passed Senate 28-6 on Feb 20, 2026; pending House action

Last verified: Feb 24, 2026

Change Log

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