99chambers

California State Assembly seat · lines in effect since 2022

California Assembly District 77

A district of about 501,000 people, 67% of adults with a bachelor's degree. It votes D+31.1 relative to the nation for president.

Tasha Boerner (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+31.131st most
Democratic
Most DemocraticMost Republican41st seat · the majority lineDistrict 77

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.

202220242026
California State AssemblyD+20.8D+20.9D+27.5

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 77.

Adults with a bachelor's degree67% 97th pct · 3rd of 80 in CA

Higher than 97% of seats.

White adults without a degree20% 57th pct · 35th of 80 in CA

Higher than 57% of seats.

Hispanic residents17% 8th pct · 74th of 80 in CA

Lower than 92% of seats.

Black residents2% 29th pct · 57th of 80 in CA

Lower than 71% of seats.

Asian residents10% 46th pct · 44th of 80 in CA

Lower than 54% of seats.

People per square mile1,433 46th pct · 44th of 80 in CA

Less dense than 54% 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 78
23% Hispanic · 53% college gradsD+38.0Held DDistrict 66
23% Hispanic · 57% college gradsD+25.3Held DDistrict 44
21% Hispanic · 51% college gradsD+35.4Held DDistrict 28
22% Hispanic · 58% college gradsD+46.5Held 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. Tasha Boerner (D)
    2025– · Won 2024 by 20.9, 2026 by 27.5
  2. Tasha Boerner Horvath (D)
    2023–2025 · Won 2022 by 20.8

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