99chambers

California State Assembly seat · lines in effect since 2022

California Assembly District 54

A district of about 504,000 people, 64% Hispanic and 21% Asian, 28% of adults with a bachelor's degree. It votes D+49.4 relative to the nation for president.

Mark González (D) · since Nov 5, 2024Next election Nov 7, 2028The 2026 race →

Where it sits among all 80 seats

Every California State Assembly 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+49.413th most
Democratic
Most DemocraticMost Republican41st seat · the majority lineDistrict 54

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.

20222026
California State AssemblyD+57.2D+66.2

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 80 seats. Small marks are other seats in California. The black marker is District 54.

Adults with a bachelor's degree28% 34th pct · 53rd of 80 in CA

Lower than 66% of seats.

White adults without a degree4% 1st pct · 79th of 80 in CA

Lower than 99% of seats.

Hispanic residents64% 82nd pct · 15th of 80 in CA

Higher than 82% of seats.

Black residents5% 63rd pct · 30th of 80 in CA

Higher than 63% of seats.

Asian residents21% 77th pct · 19th of 80 in CA

Higher than 77% of seats.

People per square mile12,326 99th pct · 2nd of 80 in CA

Denser than 99% 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.

District 52
55% Hispanic · 38% college gradsD+58.2Held DDistrict 43
73% HispanicD+35.7Held DDistrict 62
77% HispanicD+34.4Held DDistrict 68
71% Hispanic · 23% college gradsD+26.3Held 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 2022.

  1. Mark Gonzalez (D)
    2025– · Won 2024 by 12.5, 2026 by 66.2
  2. Miguel Santiago (D)
    2023–2025 · Won 2022 by 57.2

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