99chambers

U.S. House seat · lines in effect since 2026

California's 25th District

A district of about 721,000 people, 64% Hispanic, 22% of adults with a bachelor's degree. It votes D+8.7 relative to the nation for president.

Raul Ruiz (D) · since Jan 3, 2013Next election Nov 7, 2028The 2026 race →
CA-25

Source: 2026 results: California Secretary of State; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET

Where it sits among all 435 seats

Every U.S. House seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

D+8.7171st most
Democratic
Most DemocraticMost Republican218th seat · the majority line121137344315161730364429148191018322824252514650412638431942733391492735473216CA-25451348224023520

Labels below the bar mark 51 other seats in California.

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

2026
U.S. HouseD+30.0

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: California Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 435 seats. Small marks are other seats in California. The black marker is CA-25.

Adults with a bachelor's degree22% 5th pct · 46th of 52 in CA

Lower than 95% of seats.

White adults without a degree22% 21st pct · 22nd of 52 in CA

Lower than 79% of seats.

Hispanic residents64% 96th pct · 7th of 52 in CA

Higher than 96% of seats.

Black residents3% 22nd pct · 34th of 52 in CA

Lower than 78% of seats.

Asian residents3% 40th pct · 52nd of 52 in CA

Lower than 60% of seats.

People per square mile86 21st pct · 47th of 52 in CA

Less dense than 79% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean. 1 of the 4 flipped this year.

AZ-7
60% Hispanic · 22% college gradsD+24.9Held DCA-13
65% HispanicD+4.6Held DNM-2
61% Hispanic · 24% college gradsD+0.9Held DCA-22
74% HispanicD+2.9Flipped D

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2026.

  1. Raul Ruiz (D)
    2027– · Won 2026 by 30.0

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)