June 2, 2026, Primary Election: Basic Timeline
Disclaimer: The dates listed below are not guaranteed to be correct and are still subject to change, particularly if new legislation is passed.
For most dates that fall on a Saturday, Sunday, or County holiday, use the next regular business day for transactions (with some exceptions – see * and † below). County holidays during this period include:
- Dec. 25, 2025 - Christmas Day
- Jan. 1, 2026 - New Year's Day
- Jan. 19, 2026 - Martin Luther King Jr. Day
- Feb. 12, 2026 - Lincoln's Birthday
- Feb. 16, 2026 - Presidents' Day
- Mar. 31, 2026 - César Chávez Day
- May 25, 2026 - Memorial Day
| Date(s) | Event |
|---|---|
| Ongoing | Local measure letter assignments (letters are assigned alphabetically in the order they are filed) |
| 12/11/25-2/4/26 | Signatures in lieu of filing fees period |
| 1/26/26-2/4/26 | Declarations of intention filing period (candidates for superior court judge only) |
| 2/5/26-2/9/26 | Extended declarations of intention filing period (candidates for superior court judge only) |
| 2/9/26-3/6/26 | Candidate nominations filing period |
| 3/6/26 | Consolidation deadline |
| 3/6/26 | Deadline for governing bodies to submit measures |
| 3/6/26 | Tax rate statement deadline (bond measures only) |
| 3/9/26-3/11/26 | Extended candidate nominations filing period |
| 3/11/26 | Deadline for governing bodies to amend/withdraw measures |
| 3/12/26 | Random alphabet drawing |
| 3/13/26 | Argument deadline |
| 3/13/26 | Impartial analysis deadline |
| 3/20/26 | Rebuttal deadline (only if opposing arguments are filed) |
| 4/6/26-5/19/26 | Write-in period (except for superior court judge seats for which only the incumbent filed) |
| 4/18/26 * | Deadline to send ballots to currently registered military/overseas voters * |
| 4/23/26 | Target date to begin mailing County Voter Information Guides |
| 5/4/26 | Voting by mail opens; first day voters can pick up Vote-by-Mail ballots at the Registrar of Voters Office |
| 5/4/26 | First day Registrar of Voters may begin to process Vote-by-Mail ballots |
| 5/5/26-6/2/26 | Official Ballot Drop Boxes are open daily 24/7 until 8 p.m. on Election Day |
| 5/18/26 | Standard voter registration deadline |
| 5/19/26-6/2/26 | Conditional (a.k.a. “same day”) voter registration period |
| 5/23/26-6/1/26 † | 11-day Vote Centers are open daily from 9 a.m. to 5 p.m. † |
| 5/26/26 | Last day for voters to request a ballot be mailed to them |
| 5/30/26-6/1/26† | 4-Day Vote Centers are open daily from 9 a.m. to 5 p.m. (supplementing 11-Day Vote Centers that have already been open since 5/23/26) † |
| 6/2/26 | Election Day: All Vote Centers (both 11-Day and 4-Day) are open from 7 a.m. to 8 p.m. |
| 6/9/26 | Vote-by-Mail ballots which are postmarked on or before Election Day must be received by this date in order to be counted |
| 7/2/26 | Deadline to send certified election results to district governing boards |
* Although the deadline to send ballots to currently registered military/overseas voters falls on a Saturday (4/18/26), because the deadline is set by federal election law, it does not move to the next business day.
† 11-Day Vote Centers and 4-Day Vote Centers are open every day in the date ranges shown, including Saturdays, Sundays, and Memorial Day (May 25, 2026).
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