REGISTER TO VOTE
Missouri voters may register to vote online at the Missouri Secretary of State website. Note that you will need to use a touchscreen device to sign your online voter registration application. If you do not have a touchscreen device to use, you can print a PDF version of the voter registration form, sign the printed form, and mail it in.
If you would prefer to register to vote in person, you can visit the St. Louis County Board of Elections office in person at 725 Northwest Plaza Drive, St. Ann, MO 63074. You can find office hours and contact information on the St. Louis County Board of Elections website.
CHECK YOUR VOTER REGISTRATION
If you are already registered to vote in St. Louis County, and want to check that your voter registration information is accurate and up to date, you can do so at the voter portal at the Missouri Secretary of State website.
UPDATE YOUR VOTER REGISTRATION
If you are already registered to vote in St. Louis County, and just need to update your voter registration status due to a recent move or add a party affiliation, you can update your voter registration information with this form from the St. Louis County Board of Elections.