99chambers

California State Assembly seat · lines in effect since 2022

California Assembly District 13

A district of about 478,000 people, 44% Hispanic and 21% Asian, 23% of adults with a bachelor's degree. It votes D+18.2 relative to the nation for president.

Rhodesia Ransom (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+18.248th most
Democratic
Most DemocraticMost Republican41st seat · the majority lineDistrict 13

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.

20242026
California State AssemblyD+13.7D+33.3

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 13.

Adults with a bachelor's degree23% 22nd pct · 63rd of 80 in CA

Lower than 78% of seats.

White adults without a degree17% 48th pct · 42nd of 80 in CA

Lower than 52% of seats.

Hispanic residents44% 66th pct · 28th of 80 in CA

Higher than 66% of seats.

Black residents9% 81st pct · 16th of 80 in CA

Higher than 81% of seats.

Asian residents21% 78th pct · 18th of 80 in CA

Higher than 78% of seats.

People per square mile976 41st pct · 48th of 80 in CA

Less dense than 59% 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 31
63% HispanicD+17.5Held DDistrict 11
30% Hispanic · 28% college gradsD+22.0Held DDistrict 79
44% Hispanic · 26% college gradsD+25.9Held DDistrict 50
62% Hispanic · 25% college gradsD+14.0Held 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 2022.

  1. Rhodesia Ransom (D)
    2025– · Won 2024 by 13.7, 2026 by 33.3
  2. Carlos Villapudua (D)
    2023–2025 · Won 2022 by 21.3

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