Registered Political Parties in San Diego, California

Published May 2026 | Sources: California Secretary of State, party websites, San Diego County Registrar of Voters Article created by Claude AI and reviewed by human. For reliable, up-to-date voting information, visit TurboVote by Democracy Works.

Overview

California recognizes six qualified political parties at the state level. All six maintain active presences in San Diego County, the second-most populous county in California. Voters in San Diego may register with any of these parties or decline to state a party preference (NPP — No Party Preference). The county's official elections authority is the San Diego County Registrar of Voters.

San Diego County Registrar of Voters 5600 Overland Ave, San Diego, CA 92123 Phone: (858) 565-5800 | Website: sdvote.com

California's Six Qualified Political Parties

1. Democratic Party

The Democratic Party is one of the two major parties in the United States and the dominant party in California statewide.

San Diego County Democratic Party

• Address: 3934 Murphy Canyon Rd., Suite B103, San Diego, CA 92123
• Phone: (858) 277-3367
• Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
• Website: sddemocrats.org
• State Party Website: cadem.org

State party contact: 1830 9th Street, Sacramento, CA 95811 | (916) 442-5707 | This email address is being protected from spambots. You need JavaScript enabled to view it.

2. Republican Party

The Republican Party is the other major national party, with a significant base of registered voters across San Diego County.

Republican Party of San Diego County (SDGOP)

• Address: 3435 Camino Del Rio S., Suite 114, San Diego, CA 92108
• Phone: (858) 450-4600
• Hours: Monday–Friday, 9:30 AM – 5:00 PM
• Website: sandiegorepublicans.org
• State Party Website: cagop.org

State party contact: 1001 K Street, 4th Floor, Sacramento, CA 95814 | (916) 448-9496 | This email address is being protected from spambots. You need JavaScript enabled to view it.

3. Libertarian Party

The Libertarian Party is the third largest party in California by registration, advocating for individual liberty, limited government, and free markets.

San Diego Libertarian Party

• Address: 1545 Grand Ave, San Diego, CA 92109
• Phone: (858) 204-4918
• Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
• Website: sdlp.org
• State Affiliate Page: ca.lp.org/affiliates/san-diego

State party contact: 428 J St., Suite 400, Sacramento, CA 95814 | (916) 446-1776 | This email address is being protected from spambots. You need JavaScript enabled to view it.

4. Green Party

The Green Party of California focuses on environmental sustainability, social justice, electoral reform, and opposition to corporate political influence.

Green Party of San Diego County

• Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
• Website: sdgreenparty.org
• County page (state site): cagreens.org/county-parties/san_diego

State party contact: P.O. Box 485, San Francisco, CA 94104 | (916) 448-3437 | This email address is being protected from spambots. You need JavaScript enabled to view it. | cagreens.org

5. American Independent Party (AIP)

The American Independent Party was founded in California in 1967 and is one of the oldest third parties in the state. Voters should be aware that many Californians register with the AIP by mistake, intending to register as "independent" (No Party Preference).

American Independent Party of California

• Website: aipca.vote (also aipca.org)
• State Chair Contact: This email address is being protected from spambots. You need JavaScript enabled to view it.

Note: No dedicated San Diego County chapter office has been publicly listed. Contact is handled at the state level.

State contact: 476 Deodara St., Vacaville, CA 95688 | (707) 359-4884

6. Peace and Freedom Party (PFP)

The Peace and Freedom Party describes itself as a working-class party focused on social justice, environmental protection, universal healthcare, and labor rights.

Peace and Freedom Party

• Website: peaceandfreedom.us
• Mailing Address (State): P.O. Box 24764, Oakland, CA 94623
• State Contact: (916) 698-8131 | This email address is being protected from spambots. You need JavaScript enabled to view it.

Note: The PFP operates primarily at the state level in California. San Diego County has representation on the party's state Legislative Committee.

Quick Reference Table

Notes on Voter Registration

• All six parties above are qualified political parties recognized by the California Secretary of State, meaning they appear on the voter registration form and their candidates appear on primary ballots.
• Voters may also register as No Party Preference (NPP), which does not affiliate them with any party.
• In primary elections, some parties (Democratic, American Independent, Libertarian) allow NPP voters to participate in their presidential primaries; others (Republican, Green, Peace and Freedom) hold closed primaries.
• California uses a Top Two Open Primary system for most offices, where the top two vote-getters advance to the general election regardless of party.

Sources

1. California Secretary of State — Political Party Qualification: sos.ca.gov/elections/political-parties/political-party-qualification
2. California Secretary of State — Qualified Political Parties (Official PDF, 2024 Primary): elections.cdn.sos.ca.gov
3. California Secretary of State — Party Statements of Purpose: sos.ca.gov/elections/political-parties/party-statements
4. San Diego County Democratic Party — Contact: sddemocrats.org/contact.html
5. Republican Party of San Diego County: sandiegorepublicans.org
6. San Diego Libertarian Party — Contact: sdlp.org/contact-us
7. Green Party of San Diego County (GPCA County Directory): cagreens.org/county-parties/san_diego
8. Peace and Freedom Party: peaceandfreedom.us
9. American Independent Party of California: aipca.vote
10. San Diego County Registrar of Voters — Political Parties: sdvote.com