Missouri
Candidates who support common-sense gun safety laws are running up and down the ballot this year in Missouri. Learn more and plan your vote.
In an average year, 1,377 people die by guns in Missouri. More at EveryStat.
in the country for Gun Law Strength (up from #41 last year). Learn more about Gun Law Rankings.
Missouri Voter Registration Deadlines — 2026 Statewide Primary and General Elections
As always, it’s best to double-check your state’s election website to verify the information outlined below and to see any recent changes to election rules: Missouri Election Website
Upcoming Statewide Election Dates in Missouri
Primary: August 4, 2026
General: November 3, 2026
In-Person Voter Registration Deadline
Primary Election: July 8, 2026, is the last day for Missouri residents to register in person to vote in the primary election.
General Election: October 7, 2026, is the last day for Missouri residents to register in person to vote in the general election.
Contact your county clerk’s office to learn more about in-person voter registration in Missouri.
Mail Voter Registration Deadline
Primary Election: July 8, 2026, is the last day for Missouri residents registering via mail to vote in the primary election to postmark their application forms.
General Election: October 7, 2026, is the last day for Missouri residents registering via mail to vote in the general election to postmark their application forms.
Use the Gun Sense Voter registration tool to access Missouri’s voter registration form. You will have the option to download Missouri’s voter registration form, or to continue with the voter registration process online.
Online Voter Registration Deadline
Primary Election: July 8, 2026, is the last day for Missouri residents to register online to vote in the 2026 primary election.
General Election: October 7, 2026, is the last day for Missouri residents to register online to vote in the 2026 general election.
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Join Our Movement
Join your local Moms Demand Action chapter 
Join your local Students Demand Action chapter 
Join the Gun Sense Action Network Gun Sense Candidates in Missouri
This Gun Sense Candidate distinction signals that candidates have demonstrated that they will govern with gun safety in mind if elected. Learn more.
