- All active California registered voters will receive a vote-by-mail ballot for the Primary Election.
- Vote-by-mail ballots can be returned by mail, at a drop-off location, or your county elections office.
Key dates:
- The last day to register to vote in the 2026 CA Primary Election is May 18, 2026.
- The county elections office will begin mailing ballots by May 4, 2026.
- Ballot drop-off locations open on May 5, 2026.
- Vote centers open for early in-person voting in all Voter’s Choice Act counties beginning on May 23, 2026.
- Vote-by-mail ballots must be postmarked on or before Election Day (6/2/26) and received by June 9, 2026. Mail your ballot as soon as possible, at least 7 - 10 days before the 6/2/26 deadline.*
*ALERT: MAIL YOUR BALLOT BACK EARLY!
Beginning December 24, 2025, the U.S. Postal Service has changed how postmarks are applied. If you mail in your ballot, this change will affect whether your ballot is postmarked in time to be counted.
Under the new process, USPS does not stamp mail when they receive it at your local post office. Instead, the “official” postmark date is whenever your envelope first hits an automated sorting machine at a regional processing center. As a result, the date shown on your envelope may be several days later than the day you placed it in the mail.
To ensure your ballot is postmarked by Election Day, mail your ballot as soon as possible, at least 7 - 10 days before the 6/2/26 deadline.
If you are mailing your ballot on Election Day, request a manual postmark from a postal employee inside a United States Post Office.
Resources
CA Secretary of State Election Information
VOTE411
Easy Voter Guide
Elections and Voting (LWVDV)
Candidate Forums
Contra Costa County Superintendent of Schools - Candidate Forum (5/9/26, in person only)
How the Statewide Primary Election Works
In this California primary election, voters will choose which two candidates will move on to the general election in November.
For the following offices, you may choose any candidate on your ballot, from any political party. The two candidates with the most votes will run against each other in November. It is possible that those two candidates will be from the same political party.
Governor
Lieutenant Governor
Secretary of State
Controller
Treasurer
Attorney General
Insurance Commissioner
Superintendent of Public Instruction
Representative in U.S. Congress (2-Year term).
State Senator (4-Year term, even-numbered districts will be voted on in this election)
State Assembly Member (2-Year term)
State Board of Equalization (state tax commission, 4-Year term)
Check WheresMyBallot.sos.ca.gov to find out where your ballot is in the process and when it has been accepted.