Voting in South Dakota
- Register by
- October 19, 5pm
- Request a mail ballot by
- November 2, 5pm
- Mailed ballot must arrive by
- November 3 close of polls
See every race and candidate on your South Dakota ballot, and where each one stands, before you vote.
Plan your ballot →How to cast your ballot
By mail
Any registered voter may vote by mail — no reason needed.
In person
- Polls open on election day
- 7am – 7pm
- Or vote early
- In the windows shown above
What counts as ID
You will be asked to show photo ID to vote in South Dakota.
Acceptable forms include:
- South Dakota driver's license or non-driver's ID card
- US government photo ID (including a passport)
- US armed forces ID
- Current student photo ID from a South Dakota high school or South Dakota accredited institution of higher education
- Tribal photo ID
Voters without ID: If you are unable to provide ID, you can sign a personal identification affidavit and vote a regular ballot.
Before you can vote
Registering
Ways to register:
Who can register, and what you need
To register in South Dakota you must:
- Be a United States citizen (proof of citizenship required to vote in non-federal races)
- Be a resident of South Dakota for at least thirty days prior to the next election
- Be at least 18 years old on or before the next election
- Not have been judged mentally incompetent by a court
- Not be currently serving a sentence for a felony conviction which included imprisonment, served or suspended, in an adult penitentiary system
You can find more information on voting rights restoration here.
Which primary can you vote in?
If you want to participate in South Dakota partisan primary elections, you should register with the party whose primary you would like to vote in. However, some parties allow unaffiliated voters to participate in their primary elections.
Also voted on June 2: California, Iowa, Montana, New Jersey, New Mexico.
Dates, deadlines and rules come from DemocracyWorks, last refreshed August 27, 2026; poll hours from our own election guide. Rules change — check with your election office before you rely on a date.
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