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1. Am I registered to vote in Jefferson County, Missouri?

The deadline to register to vote is the 4th Wednesday preceding any election. If you are unsure of your registration status, please feel free to contact us at 636-797-5486, or check online.

2. Where can I register to vote?

See our Registration Sites page to find voter registration locations.

3. I moved to Jefferson County from another county before the deadline and I failed to register to vote in Jefferson County. Can I vote in my old county on election day?

N! According to Missouri law, a voter must cast his ballot from his current address at his new polling location in Jefferson County. If a voter misses the deadline to register, he shall not be allowed to vote at either his old polling location in his former county or at his new polling location in Jefferson County.

The voter may be allowed to cast a provisional ballot. Register to vote, or to find out if you’re registered in Jefferson County, Missouri. Don’t delay, register today!

4. I moved to Jefferson County after the voter registration deadline has passed, what are my voting options? Can I legally vote?

Yes, a voter who has moved after the deadline may cast a ballot. However, the voter must come to the County Clerk’s office to do so. The type of ballot the voter will be voting on is only located in the Clerk’s office. Please do not go to the polls as the election judges will contact the Clerk’s office and ultimately send the voter to the Clerk’s office in Hillsboro, Missouri on election day.

5. If I registered to vote by mail, how do I find out if my registration has been received?

All registrations must be processed in 7 days. All prospective registrants should have received confirmation from us regarding their application. Confirmation will come in the form of a letter or a post card. If a voter does not receive confirmation that he is registered to vote from this office, contact us immediately at 636-797-5486 or check online.

6. I received confirmation from the County Clerk that I am registered to vote, but I have lost the card, can I get another? Can I vote without my card?

Yes, a voter may vote without presenting their Voter Identification Card. This card is just one of many acceptable forms of identification that a voter may present to the election judge. If a card is lost, contact us for a new replacement card at 636-797-5486.

7. What should I do about my registration if I marry, move or change my name?

A voter should update this information as soon as possible. Please see the Change of Address / Name page and complete a new voter registration application