Find nonpartisan voter education and local coverage for California. A summary of California voting rules is below, and each county on the map has its own page.
Explore California Counties
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All 58 California counties (A–Z)
- Alameda County
- Alpine County
- Amador County
- Butte County
- Calaveras County
- Colusa County
- Contra Costa County
- Del Norte County
- El Dorado County
- Fresno County
- Glenn County
- Humboldt County
- Imperial County
- Inyo County
- Kern County
- Kings County
- Lake County
- Lassen County
- Los Angeles County
- Madera County
- Marin County
- Mariposa County
- Mendocino County
- Merced County
- Modoc County
- Mono County
- Monterey County
- Napa County
- Nevada County
- Orange County
- Placer County
- Plumas County
- Riverside County
- Sacramento County
- San Benito County
- San Bernardino County
- San Diego County
- San Francisco County
- San Joaquin County
- San Luis Obispo County
- San Mateo County
- Santa Barbara County
- Santa Clara County
- Santa Cruz County
- Shasta County
- Sierra County
- Siskiyou County
- Solano County
- Sonoma County
- Stanislaus County
- Sutter County
- Tehama County
- Trinity County
- Tulare County
- Tuolumne County
- Ventura County
- Yolo County
- Yuba County
Voting in California
Voting rules are set by each state. This is a summary of California voting rules, checked Nov. 4, 2026, from Vote.gov (U.S. government), the National Conference of State Legislatures (NCSL) and Ballotpedia. Rules and dates can change, so confirm with California’s official election website or your local election office before each election.
Registering to vote
- Online: by 15 days before Election Day.
- By mail: must be postmarked 15 days before Election Day.
- In person: available through Election Day (same-day registration).
- Register or check your registration (California on Vote.gov)
Primary elections
California uses a top-two primary for most offices: all candidates appear on one ballot, any voter can vote for any candidate, and the top two advance to the general election.
Voter ID
California does not require most voters to show an ID document to vote in person; election workers confirm identity in other ways, such as checking a signature or personal information. First-time voters who registered by mail may need to show ID under federal law.
Early voting
Starts: Twenty-nine days before election Note: California conducts elections primarily by mail. Ends: Day of election. Locations and hours are set locally.
Voting by mail
California conducts elections by mail: registered voters are automatically sent a ballot. You can still vote in person.
Your local election office
Find contact information for your local election office on California’s official election website.
Sources: Vote.gov (registration deadlines); NCSL voter ID (updated Sept. 3, 2026), early voting (updated Aug. 11, 2026) and absentee voting (updated July 17, 2026); Ballotpedia primary types (as of Aug. 2026).