It’s National Voter Registration Day, and the 2026 midterm election in California is less than two months away.

Your county will begin mailing out ballots in early October, so now’s a great time to make sure you’re registered to vote.

The good news: The last day to register online to vote is Oct. 19. And if you miss that deadline for some reason, you have several options for registering or reregistering in person all the way through Election Day itself on Nov. 3.

An election worker processes mail-in ballots for the California state primary election at the Los Angeles County Ballot Processing Center on June 5, 2026, in City of Industry, California. (Justin Sullivan/Getty Images)

Here’s what to know about checking your voter registration and how to make sure election officials have your correct mailing address so your ballot arrives in time. You can also jump straight to:

I want to register to vote for the first time
What should I do if I’ve moved to a new address or changed my name?
What if I haven’t received my ballot yet?

I’m almost certain I’m registered to vote … but how can I check?

You can check your voter registration status at voterstatus.sos.ca.gov, which will show whether you’re registered to vote and the address associated with your registration.

If your voter registration is active and your address and name are up to date, your ballot should arrive soon. You can use voterstatus.sos.ca.gov to check when your ballot is mailed.

When ballots start landing in mailboxes in October, you can also use the Where’s My Ballot? tool to check whether your ballot was sent out. We also have a 2025 guide on what to do if your ballot never showed up.

What are some reasons I might need to update my voter registration?

Updating your voter registration is also known as “reregistering” to vote. That’s because to update elements of your voter record at registertovote.ca.gov, you’ll need to register to vote again as if you were making a new application.

As a general rule, you’ll definitely need to reregister if your name or address has changed. But if registering to vote when you know you’re already registered feels weird, don’t worry: This won’t be seen as you trying to fraudulently register to vote twice or anything like that.

Because your voter registration is tied to your Social Security number and your driver’s license/state ID card number, your new voter registration will be matched with your existing voter registration, and your details will be updated.

Ballots are sorted the day after California’s primary election at the L.A. County Ballot Processing Center on June 3, 2026, in City of Industry, California. (Jae C. Hong/AP Photo)

There will also be a section on the form where you can provide any previous addresses and names under which you’ve been registered to vote.

If you want to change your party preference, you’ll also need to reregister to do that.

For smaller changes, your county may allow you to submit a Voter Action Form by mail or online.

For example, if San Francisco residents want to make minor changes to their voter registration, they can use a form from the San Francisco Department of Elections to determine whether they can do so online. Find your Bay Area county elections office’s website and contact details.

You should update your voter registration:

If you have moved to a new address within California

If your old address is on your voter registration, then your mail-in ballot will automatically be sent to that address — not your new one. Your voter registration will reflect your new address only if you’ve manually updated it or if you’ve updated your address with the DMV.

Register to vote with your new address at registertovote.ca.gov.

The state says that you can also send a signed letter to your current county elections official to let them know you’ve moved, along with your date of birth and current address. Find your Bay Area county elections office’s website and contact details.

If you have legally changed your name

You’ll need to reregister to vote with your new name. One important thing: The secretary of state recommends that, before you do that, you update your California driver’s license or identification card with the DMV first.

This is because when you register to vote online, your county elections office electronically requests a copy of the signature the DMV currently has for you. And if you haven’t updated your signature with the DMV, the signature the agency sends to your county elections office will be the signature for your previous name, not your new one, and your registration will be rejected. Read how to update your signature with the DMV.

What if you aren’t able to update your details with the DMV first? The state recommends you select “decline” on the application when asked to use your DMV signature to register to vote — but you’ll have to hit “print” and sign the paper application, which you’ll mail.

Register to vote with your new name at registertovote.ca.gov.

If you haven’t voted in a while

“In general,” says the Secretary of State’s Office, you’ll stay registered to vote for as long as you remain at the same address associated with your registration — but “there are cases in which voter registration can be canceled if a voter has not voted in several consecutive general elections.”

So if your ballot doesn’t arrive in October, and you suspect it might be because you haven’t voted in many years, contact your county’s elections office ASAP. Jump straight to our list of Bay Area county elections offices.

When is my last chance to update my voter registration?

If you forget to reregister with your new address or name, and your ballot is sent out in October to the wrong address or without your current name, don’t worry.

As long as you update your voter registration online at registertovote.ca.gov before the Oct. 19 deadline, your county will just cancel the ballot that went to your old address and send you a new one.

A voter casts their ballot at the Veterans Memorial Center in Davis on June 2, 2026.

And if things get hectic this month and you miss the Oct. 19 deadline, you can still update your voter registration — you’ll just have to do it in person at that stage. Vote centers will open in most Bay Area counties by Oct. 31.

Go to your county elections office or an open voting location and ask to register in person via Same Day Registration (also called conditional registration). You can do this up until polls close at 8 p.m. on Election Day, Nov. 3.

How can I register to vote for the first time?

You can register to vote if you’re:

A United States citizen and a resident of California
18 years old or older on Election Day

People who are currently serving a state or federal prison term for a felony conviction cannot vote or register to vote.

A voter drops off their ballot at UC Davis in Davis on June 2, 2026. (Gina Castro/KQED)

You can register to vote online at registertovote.ca.gov before the Oct. 19 deadline. After that, you can register to vote in person at your county elections office or an open voting location, where you can register through Same Day Registration (also called conditional registration). You can do this up until polls close at 8 p.m. on Election Day.

If you’re unhoused or have no fixed address, you can still register to vote by providing a description of the place where you spend most of your time if you don’t have a street address, including cross streets. You can register to vote this way via an online application before Oct. 19 or on the paper voter registration application you can pick up at any DMV field office, or many post offices, public libraries, government offices or your county elections office by request (where you can also use Same Day Registration in person).

When will my ballot arrive?

Every registered voter in California will automatically receive a ballot in the mail.

Oct. 5 is the deadline for Bay Area counties to start mailing ballots, though many will start several days earlier. This means your ballot will most likely arrive in early to mid-October.

Election voting materials, including the official voter information guide, sample ballot and an official ballot with return envelope mailed to a Southern California resident ahead of a state primary election on May 5, 2026, in Los Angeles. (Jay L Clendenin/Getty Images)

You can use both voterstatus.sos.ca.gov and the state’s Where’s My Ballot? tool to check whether your ballot has been sent out. And if your ballot is missing, don’t worry: You have options. Read our 2025 guide for what to do if your ballot doesn’t show up.

You can use the ballot to cast your vote or you can forget it and request a fresh one at a voting location. The one that arrived in the mail will be canceled.

How can I contact my county directly about voting?

Across the Bay Area, elections officials are encouraging voters to reach out — early — with any questions or concerns. Here’s the contact information for your county:

Alameda: For information about voting by mail, registration and polling place lookup, call 510-267-8683.
Contra Costa: Call 925-335-7800 or email voter.services@vote.cccounty.us.
Marin: Call 415-473-6456 or go to the Marin County elections webpage to send a form email.
Napa: Call 707-253-4321 or email the elections office at elections@countyofnapa.org.
San Francisco: Call 415-554-4375 or email sfvote@sfgov.org.
San Mateo: Call 888-762-8683 or email registrar@smcacre.org.
Santa Clara: Call toll free at 866-430-VOTE (8683) or email registrar@rov.sccgov.org.
Solano: Call 707-784-6675 or 888-933-VOTE (8683). You can also email elections@solanocounty.com.
Sonoma: Call 707-565-6800 or toll free at 800-750-8683.

The state also has a full list of every county elections office in California.

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