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The California State Senate is one-half of our state legislature. Along with the Assembly, it essentially serves as California’s Congress. On June 2, voters will choose representatives in half of the 40 state Senate districts, each home to more than 900,000 constituents.
Not sure who represents you in the California State Legislature? CalMatters has a tool for that. Just type in your address and look it up.
You can also use CalMatters' Digital Democracy tool to find out where your legislator lands ideologically.
Editor's note: In races for which CalMatters is tracking campaign finance, you'll see charts embedded.
State lawmakers draft and pass laws that govern the entire state. These laws can provide benefits that aren’t granted by the federal government, such as paid family leave or in-state tuition for undocumented college students. They can impose rules that apply statewide, like restrictions on buying guns, or not allowing restaurants to provide single-use plastic straws unless a customer requests it. They can also set minimum standards for the state and allow cities and counties to go further. For instance, the state minimum wage is $16.90 an hour, while the city of L.A.'s hourly minimum wage rises to $18.42 on July 1. (Certain professions have higher wages, too.)
Around three-quarters of lawmakers in both California’s Assembly and State Senate are Democrats. There are still divisions among lawmakers that lead to drawn-out arguments and prevent legislation from moving forward. We included information below on voter registration breakdowns in each district.
In recent years, the Legislature has:
State senators serve staggered, four-year terms, and the 20 even-numbered districts are on the ballot this year. What's at stake in this election is the Democrats' supermajority.
The current Senate has 30 Democrats and 10 Republicans. If the GOP flips at least four seats, Democrats would lose their two-thirds supermajority, which allows them to pass tax increases or put constitutional amendments on the ballot without any Republican votes.
State senators are paid $132,703 a year, plus $236 a day for expenses when the Legislature is in session. They also get reimbursed for mileage at the federal rate. Party leaders get higher pay.
Since these races are considered "voter-nominated" offices, they won't be decided in the primary. The top two vote-getters, regardless of party, will move on to the general election in November.
When information is missing
Some candidates did not reply to our requests for images. Some did not have a campaign website and/or list of endorsements available online at the time of publication. We will update this guide as more candidate information becomes available.
This guide lists races across Los Angeles and Orange counties. It notes the most-watched seats up for grabs as well as voter registration breakdowns. Names appear in the same order as the certified list of candidates.
At a glance: The district includes most of the San Fernando Valley, including all of Burbank and the city of San Fernando.
Voter registration: 50.2% Democrat, 24.5% no party preference, 18.5% Republican
Community College Professor, Democrat
Website: lacarraforsenate.com
Endorsements: Not available
State Senator, Democrat
Website: carolinemenjivar.com
Endorsements: See full list here
No Ballot Designation, Republican
Website: tony4senate.com
Endorsements: Not available
At a glance: This district spans L.A. and San Bernardino counties. It goes from South El Monte, up above Azusa into the Angeles National Forest, and down into Ontario.
Voter registration: 45.4% Democrat, 23.7% Republican, 23.4% no party preference
State Senator/Teacher, Democrat
Website: susanrubio.com
Endorsements: Not available
Small Business Owner, Republican
Website: netter.vote
Endorsements: Full list here
Father, No Party Preference
Website: jimenez4statesenate.com
Endorsements: Not available
At a glance: This district covers the westside and South Bay in L.A. County. It goes from Rancho Palos Verdes up to the Santa Monica Mountains around Malibu. It also dips east briefly into West Hollywood. The incumbent, Democrat Ben Allen, is termed out.
This is a race to watch because many constituents here were impacted by the Palisades Fire. It also has a packed Democratic field, which splits party-line support.
Voter registration: 49.4% Democratic, 23% no party preference, 20.9% Republican
Palos Verdes Peninsula Unified School Board Member, Democrat
Website: ericalegria.com
Endorsements: Full list here
Attorney, Democrat
Website: amarisdordaresqforsenate.la
Endorsements: Not available
Councilmember/Community Organizer, Democrat
Website: johnerickson4senate.com
Endorsements: Full list here
Community Organizer, Democrat
Website: ellen4senate.com
Endorsements: Full list here
Small Business Owner, Democrat
Website: briangoldsmith.com
Endorsements: Full list here
Small Businessman/Educator, Democrat
Website: newhouse4ca.com
Endorsements: Full list here
Physician/College Trustee, Democrat
Website: drsionroyforsenate.com
Endorsements: Full list here
Non-profit Executive Director, Democrat
Website: zennonforsenate.com
Endorsements: Not available
Real Estate Agent, Republican
Website: kristinairwin.com
Endorsements: Full list here
Chief Financial Officer, Republican
Website: grickmarshall.com
Endorsements: Not available
At a glance: This district covers the central swath of L.A. County. It includes most of downtown L.A. and fans out into Koreatown, East L.A., Eagle Rock and the Hollywood Hills. The incumbent, Democrat María Elena Durazo, is not running for reelection.
This is another contested race to watch. While most of the candidates here are Democrats, the California Democratic Party did not reach consensus on whom to endorse.
Voter registration: 59.9% Democrat, 23% no party preference, 10.8% Republican
Retired Teacher, Democrat
Website: Not available
Endorsements: Not available
Civil Rights Advocate, Democrat
Website: camachoforsenate.com
Endorsements: Full list here
Healthcare Advocate, Democrat
Website: wendycarrillo.com
Endorsements: Full list here
Affordable Housing Advocate, Democrat
Website: sarahernandez.com
Endorsements: Full list here
Silver Lake Neighborhood Councilmember, Democrat
Website: maebeforstatesenate.com
Endorsements: Not available
Environmental Protection Director, Democrat
Website: rasconforsenate.com
Endorsements: Full list here
Construction Project Administrator, Republican
Website: claudiaforsenateca.com
Endorsements: Not available
Pastor, Republican
Website: samshin4sd26.com
Endorsements: Not available
At a glance: This is the district for a majority of the Westside and parts of South L.A. Neighborhoods include Mar Vista, Mid City, downtown L.A., and Vermont Knolls. Aside from the city of L.A., the district also contains all of Culver City and the unincorporated communities of Ladera Heights and View Park-Windsor Hills.
Voter registration: 61.6% Democrat, 21.9% no party preference, 9.7% Republican
State Senator, Democrat
Website: lolaforca.com
Endorsements: Full list here
LA Neighborhood Councilmember, Republican
Website: joelisuzzo.com
Endorsements: Full list here
Educator/Business Owner, No Party Preference
Website: daphneforsenate.com
Endorsements: Not available
At a glance: This district sits mostly in L.A. County, but a small portion of Orange County is represented here too. It includes Montebello, Downey, La Mirada, up to La Puente and reaches over to Diamond Bar and Brea.
This is a race to watch because the voter base is purple, meaning registration is closely split between Republicans and Democrats.
Voter registration: 36.9% Democrat, 33.2% Republican, 23.7% no party preference
State Senator, Democrat
Website: bobarchuletaforsenate.com
Endorsements: Not available
Small Business Owner, Republican
Website: Not available
Endorsements: Not available
At a glance: This district has its proverbial hands in a lot of buckets. It includes Yorba Linda in Orange County, southern parts of Riverside County, Chino Hills in San Bernardino County and northern parts of San Diego County.
This is another race to watch because of the district's purple makeup.
Voter registration: 36.9% Democrat, 33.2% Republican, 21% no party preference
Doctor/Educator/Author, Democrat
Website: votedrtate.com
Endorsements: Full list here
State Senator, Republican
Website: seyartoforsenate.com
Endorsements: Full list here
At a glance: This district is mostly based in northern Orange County but extends into L.A. County's unincorporated area of South Whittier. It includes nearly all of Santa Ana and about half of Anaheim and Fullerton. The incumbent, Democrat Tom Umberg, is termed out.
Voter registration: 46% Democrat, 24.1% Republican, 23.8% no party preference
California State Assemblymember, Democrat
Website: avelinovalencia.com
Endorsements: Not available
Local Small Businesswoman, Republican
Website: shaderforsenate.com
Endorsements: Full list here
At a glance: This district mostly covers the Orange County coastline but dips into areas at the border of L.A. County. It includes Artesia, Buena Park and Garden Grove, and stretches across Seal Beach through San Clemente.
This race is one to watch since it's a fairly purple area.
Voter registration: 37.1% Republican, 33.4% Democrat, 22.9% no party preference
Anti-Tariff Attorney, Democrat
Website: votechrisduncan.com
Endorsements: Full list here
State Senator/Businessman, Republican
Website: stricklandforsenate.com
Endorsements: Full list here
At a glance: This district has southern Orange County and the northern coastal side of San Diego County. It includes Mission Viejo, Rancho Santa Margarita, Carlsbad and Oceanside.
This is a race to watch because the incumbent, a Democrat, flipped this seat in 2022. It's one of the districts the California GOP hopes to get back to chip away at the blue supermajority in the Senate.
Voter registration: 37.3% Democrat, 31.6% Republican, 23.2% no party preference
California State Senator, Democrat
Website: catherineblakespear.com
Endorsements: Full list here
Small Business Owner, Republican
Website: bassettforca.com
Endorsements: Full list here
CalMatters also contributed to this report.