Election Authority

Last Day to Register to Vote in the April 3 General Municipal Election is Wednesday, March 7


  • St. Charles County residents may register in person at the Election Authority office at 397 Turner Blvd. in St. Peters. The office will be closed Feb. 19 for Presidents Day.
  • Residents may register while obtaining services from state agencies such as the Department of Motor Vehicles, Division of Family Services, Military Recruitment or WIC.
  • Other options for registering to vote can be found in the Helpful Resources section located on this page.

Absentee Voting in the April 3 General Municipal Election Begins Tuesday, Feb. 20


St. Charles County Election Authority
397 Turner Blvd., St. Peters, MO 63376
8 a.m. to 5 p.m., Monday–Friday, Feb. 20–April 2
8:30 a.m. to 12:30 p.m., Saturday, March 31
Additional information regarding absentee voting can be found in the Written Requests and Absentee Ballot Application section located on this page.

St. Charles County Candidate Filing for Aug. 7 Primary Election Begins Tuesday, Feb. 27


St. Charles County Election Authority
397 Turner Blvd., St. Peters, MO 63376
8 a.m. to 5 p.m., Monday–Friday, Feb. 27–March 27
Filing will take place in the Absentee Voting area. Candidates should enter the building through the west side door.

Written Requests for Absentee Ballot Applications


Written requests for absentee ballots 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