To register to vote in South Dakota, you must:
- Be a U.S. citizen
- Be a resident of South Dakota
- Be at least 18 years old on or before the next election
- Not be judged mentally incompetent by a court of law
- Not currently be serving a sentence for a felony conviction which included imprisonment, served or suspended, in an adult penitentiary system
You must register to vote at least 15 days before the election you wish to vote in. This means that your voter registration form must be received by your county auditor by this deadline.