99chambers

California State Assembly seat · lines in effect since 2022

California Assembly District 1

A district of about 507,000 people, 29% of adults with a bachelor's degree. It votes R+15.7 relative to the nation for president.

Heather Hadwick (R) · 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.

R+15.775th most
Democratic
Most DemocraticMost Republican41st seat · the majority lineDistrict 1

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 AssemblyR+24.2R+15.3

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 1.

Adults with a bachelor's degree29% 38th pct · 50th of 80 in CA

Lower than 62% of seats.

White adults without a degree55% 100th pct · 1st of 80 in CA

Highest of 80 seats.

Hispanic residents13% 1st pct · 79th of 80 in CA

Lower than 99% of seats.

Black residents1% 0th pct · 80th of 80 in CA

Lowest of 80 seats.

Asian residents2% 0th pct · 80th of 80 in CA

Lowest of 80 seats.

People per square mile19 0th pct · 80th of 80 in CA

Least dense of 80 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 3
26% Hispanic · 26% college gradsR+17.9Held RDistrict 8
29% Hispanic · 34% college gradsR+17.5Held RDistrict 75
26% Hispanic · 39% college gradsR+13.5Held RDistrict 5
43% college gradsR+10.6Held R

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. Heather Hadwick (R)
    2025– · Won 2024 by 19.6, 2026 by 15.3
  2. Megan Dahle (R)
    2023–2025 · Won 2022 by 24.2

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