Election Authority

March 10, 2020 Presidential Preference Primary Information

Last Day to Register to Vote in the March 10 Presidential Preference Primary is Wednesday, Feb. 12

  • St. Charles County residents may register in person at the Election Authority office at 397 Turner Boulevard in St. Peters. The office will be closed Jan. 20 (Martin Luther King, Jr. 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 and on the Voting in St. Charles County page.

Absentee Voting in the March 10 Presidential Preference Primary Begins Tuesday, Jan. 28

St. Charles County Election Authority
397 Turner Blvd., St. Peters, MO 63376
8 a.m.–5 p.m., Monday–Friday, Jan. 28–March 9 (The office will be closed Monday, Feb. 17, for Presidents Day.)
8:30 a.m.–12:30 p.m., Saturday, March 7

Additional information regarding absentee voting can be found in the "Written Requests for Absentee Ballot Applications" section located on this page and on the Voting in St. Charles County page.

April 7, 2020 General Municipal Election Information

Last Day to Register to Vote in the April 7 General Municipal Election is Wednesday, March 11

  • St. Charles County residents may register in person at the Election Authority office at 397 Turner Boulevard in St. Peters. The office will be closed Jan. 20 (Martin Luther King, Jr. Day) and Feb. 17 (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 and on the Voting in St. Charles County page.

Absentee Voting in the April 7 General Municipal Election Begins Tuesday, Feb. 25

St. Charles County Election Authority
397 Turner Blvd., St. Peters, MO 63376
8 a.m.–5 p.m., Monday–Friday, Feb. 25–April 6
8:30 a.m.–12:30 p.m., Saturday, April 4

Additional information regarding absentee voting can be found in the "Written Requests for Absentee Ballot Applications" section located on this page and on the Voting in St. Charles County page.

August 4, 2020 Primary Election Information

Voter Registration Information

  • St. Charles County residents may register in person at the Election Authority office at 397 Turner Boulevard in St. Peters. 
  • 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 and on the Voting in St. Charles County page.

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 second Wednesday before any election. You may download, complete and return the Application for Absentee Ballot (PDF) 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

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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