99chambers

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

California's 9th District

A district of about 723,000 people, 39% Hispanic, 24% of adults with a bachelor's degree. It votes D+15.8 relative to the nation for president.

Josh Harder (D) · since Jan 3, 2019Next election Nov 7, 2028The 2026 race →
CA-9

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+15.8140th most
Democratic
Most DemocraticMost Republican218th seat · the majority line121137344315161730364429148191018322824252514650412638431CA-94273339149273547321625451348224023520

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+33.8

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-9.

Adults with a bachelor's degree24% 11th pct · 42nd of 52 in CA

Lower than 89% of seats.

White adults without a degree22% 21st pct · 23rd of 52 in CA

Lower than 79% of seats.

Hispanic residents39% 87th pct · 25th of 52 in CA

Higher than 87% of seats.

Black residents10% 59th pct · 5th of 52 in CA

Higher than 59% of seats.

Asian residents19% 95th pct · 13th of 52 in CA

Higher than 95% of seats.

People per square mile1,156 72nd pct · 27th of 52 in CA

Denser than 72% 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.

CA-7
24% Hispanic · 36% college gradsD+15.0Held DCA-31
57% Hispanic · 29% college gradsD+15.9Held DCA-27
48% Hispanic · 29% college gradsD+12.4Held DCA-52
60% Hispanic · 26% college gradsD+22.0Held 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. Josh Harder (D)
    2027– · Won 2026 by 33.8

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