Registered to vote in Jefferson County?
To register to vote online, follow the link below to the Secretary of State’s website.
Mail your registration or change of address to:
Jefferson County Clerk’s Office
PO Box 100
Hillsboro MO 63050
To check on your voter registration, call 636-797-5486.
Registered Missourians who expect to be prevented from going to their polling place on Election Day may vote absentee beginning six weeks prior to an election.
Voters can request absentee ballots from their local election authority in person, by mail, or by fax.

729 Maple St., Rm G17
Hillsboro, MO 63050
(636) 797-5486
FAX (636) 797-5360

Paid for by Gannon for Jefferson County,
Sara Edmundson, Treasurer

Use of images are not meant to imply endorsement by the United States Navy, the Missouri Army National Guard, or Department of Defense.