There are several ways to register to vote in South Dakota. You can download the South Dakota voter registration application (best way) directly from the Department of State or you can fill out the national voter registration form at the bottom of this page.

To register to vote in South Dakota, you must:

Be a United States citizen
Reside in South Dakota (residency defined)
Be at least 18 years old on or before the next election
Not currently serving a sentence for a felony conviction which included imprisonment, served or suspended, in an adult penitentiary system (See additional felony information)
Not be judged mentally incompetent by a court of law
South Dakota
Should I Ever Give My Social Security Number out On-Line?

No, you shouldn’t. In our on-line Voter Registration Section, some states such as Hawaii, Kentucky, South Carolina, Tennessee, Virginia, Ohio, and New Mexico, may ask for your social security number to prevent fraudulent registration and voting.

At no time does need your Social Security number for any reason. In the states that request a social security number for processing, we have added a safety feature in the description “If you do not want to type in your Social Security number in this form for security reasons, you can leave it blank. When you print your form to mail, you will still have the option to write it in manually before you mail in your registration application if your state requires it. We recommend typing in just the first three numbers and writing the rest in by hand after printing.. The referenced states may need that information to process your application. If you have any questions about any fields, just point your curser at the question mark beside each field.