Where to Vote or Drop Off Your Ballot for the November 3, 2026, General Election

• Introduction
• Where to Return Your Vote-by-Mail Ballot
  • Drop it in the mail
  • Deposit it at an Official Ballot Drop Box
  • Take it to a Vote Center
• Where to Vote in Person

This page provides information about Official Ballot Drop Boxes and Vote Centers in Sonoma County for the November 3, 2026, General Election. There are two main ways to vote in this election:

• Vote the ballot you receive in the mail. Per California law, every active, registered voter is automatically mailed a ballot approximately four weeks before Election Day. See Where to Return Your Vote-by-Mail Ballot.
• Vote in person at a Vote Center. See Where to Vote in Person.

If neither of these options works for you, call us at (707) 565-6800 or email us at rov-info@sonomacounty.gov to find out about alternate voting options.

Drop it in the mail

In order to count, it must be postmarked on or before November 3 (Election Day), and received in our office by November 10.

Important: The United States Postal Service (USPS) can no longer guarantee that mail will be postmarked the same day it is collected. Therefore, we generally recommend not placing your ballot in a USPS collection box on Election Day (November 3) or on the day before Election Day (November 2). Instead, you can:

• Put your ballot in any Official Ballot Drop Box in the State of California before 8 p.m. on Election Day
• Go to a physical post office location during business hours and request that a postal employee manually postmark your ballot
• Use a private mail delivery company

Find out more about postmarks in the video below:

Deposit it at an Official Ballot Drop Box

There will be 23 Official Ballot Drop Boxes available throughout the County for the November 3, 2026, General Election. They will be open 24/7 from October 6 to November 3 (Election Day) at 8:00 p.m.

Standard size Official Ballot Drop Box located outside of the Sonoma County Registrar of Voters Office at 3880 Brickway Blvd, Santa Rosa

Larger size Official Ballot Drop Box located outside of the Petaluma Veterans Memorial Building at 1094 Petaluma Blvd S, Petaluma

Official Ballot Drop Box locations for the November 3, 2026, General Election, are listed below in alphabetical order by city/place. You can also view them on this interactive map.

Take it to a Vote Center

Click here to view a list of Vote Centers in Sonoma County for the November 3, 2026, General Election.

Vote Centers will be available for in-person voting throughout the County for the November 3, 2026, General Election. All Vote Centers will be open November 3 (Election Day) from 7 a.m. to 8 p.m.

In addition:

• Seven Vote Centers will be open daily from October 24 to November 2, 9 a.m. to 5 p.m. (including Saturdays and Sundays)
• 32 Vote Centers (the original seven plus 25 more) will be open daily from October 31 to November 2, 9 a.m. to 5 p.m. (including Saturday and Sunday)

To learn how Vote Centers differ from traditional polling places, visit our Voter's Choice Act page (in short, they give voters much more flexibility regarding where, when, and how to vote).

Official Vote Center locations for the November 3, 2026, General Election, are listed below in alphabetical order by city/place. You can also view them on this interactive map.