Election Authority

Last Day to register to Vote in the Presidential Preference Primary is February 17

  • St. Charles County residents may register in person at the Election Authority office at 397 Turner Blvd. in St. Peters.
  • Residents may register while obtaining services from state agencies such as the Dept. of Motor Vehicles, Division of Family Services, Military Recruitment or WIC.
  • Registration cards can be obtained at libraries, schools and city halls located in St. Charles County.  The card must be mailed to the Election Authority by the applicant.
  • Other options for registering to vote can be found in the "Helpful Resources" section located on this page.
Absentee Voting in the Presidential Preference Primary Begins February 2
St. Charles County Election Authority; 397 Turner Blvd.; St. Peters MO 63376
Monday-Friday 8 a.m. to 5 p.m. February 2 through March 14
(The Election Authority will be closed February 15 for Presidents' Day)
Saturday, March 12, 8:30 a.m. to 12:30 p.m.
Additional information can be found in the "Written Requests and Absentee Ballot Application" section located on this page. 


Written Requests and Absentee Ballot Application

Written requests for absentee ballot must be received in the Election Authority’s office no later than 5 p.m. the Wednesday before any election.  You may download, complete and return the Application for Absentee Ballot for St. Charles County, Missouri or your request must contain the following information:

  • Your full name
  • Address where you live
  • Address where you would like the ballot to be mailed (if different)
  • Reason for voting absentee
  • The date of the election
  • Your political party preference, if you are applying for a Primary Election Ballot
  • Your signature
Directions to the Election Authority
  • We are located off Highways 70 and 79 in St. Peters
  • Exit off of Highway 70 and head north on Highway 79
  • Get in the right lane and bear right onto the North Outer Road exit
  • Go straight at the stop sign, crossing over the North Outer Road
  • Enter onto Turner Boulevard, the Election Authority office is the second building on the right
Helpful Resources