HarrisDemocratic55.0%80,336TrumpRepublican41.7%60,887OtherAll other candidates3.4%4,953
D+13.3- Lead
- 19,449
- Total
- 146,176
- vs nation
- D+14.8
modeled Census-place estimatemodeled estimate
Akashicstate house district
California 13th State House District
Contests in this Place (46 available)
President38 · 1876–2024 · 3 mapped
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic64.2%106,505TrumpRepublican33.7%55,881OtherAll other candidates2.2%3,638
D+30.5- Lead
- 50,624
- Total
- 166,024
- vs nation
- D+26.0
modeled Census-place estimatemodeled estimate
ClintonDemocratic62.5%81,825TrumpRepublican29.9%39,150OtherAll other candidates7.6%9,903
D+32.6- Lead
- 42,675
- Total
- 130,878
- vs nation
- D+30.5
modeled Census-place estimatemodeled estimate
ObamaDemocratic65.0%77,044RomneyRepublican32.1%38,021OtherAll other candidates2.9%3,409
D+32.9- Lead
- 39,023
- Total
- 118,474
- vs nation
- D+29.1
modeled Census-place estimatemodeled estimate
ObamaDemocratic64.0%76,902McCainRepublican33.5%40,240OtherAll other candidates2.6%3,077
D+30.5- Lead
- 36,662
- Total
- 120,219
- vs nation
- D+23.2
modeled Census-place estimatemodeled estimate
KerryDemocratic56.3%58,795BushRepublican42.5%44,377OtherAll other candidates1.2%1,245
D+13.8- Lead
- 14,418
- Total
- 104,417
- vs nation
- D+16.3
modeled Census-place estimatemodeled estimate
GoreDemocratic57.6%53,868BushRepublican38.5%36,059OtherAll other candidates3.9%3,664
D+19.0- Lead
- 17,809
- Total
- 93,591
- vs nation
- D+18.5
modeled Census-place estimatemodeled estimate
ClintonDemocratic55.9%45,355DoleRepublican35.3%28,672OtherAll other candidates8.8%7,122
D+20.6- Lead
- 16,683
- Total
- 81,149
- vs nation
- D+12.0
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- D+13.3MIT Election Lab
- Population
- 487,8722024 5-year
- Population density
- 1,032 / sq mi2024 5-year · TIGER/Line
- Land area
- 473 sq miTIGER/Line
- Median household income
- $90,7062024 5-year
- White (non-Hispanic)
- 20.0%2024 5-year
- Black
- 10.0%2024 5-year
- Hispanic / Latino
- 42.9%2024 5-year
- Peak Democratic margin
- D+62.2 in 1936MIT Election Lab
- Peak Republican margin
- R+26.7 in 1924MIT Election Lab
- Most similar
- Assembly District 50, CA · twin score 93.1
presidential history
Party record book
California 13th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
80.5%
19,716 votes · D+62.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 72.0%
Republican
Warren G. Harding1920
50.4%
5,210 votes · R+6.8 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 49.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
106,505votes
64.2% of the vote · D+30.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 81,825 votes
Republican
Donald Trump2024
60,887votes
41.7% of the vote · D+13.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 55,881 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Woodrow Wilson1912
+40.2pts D vs U.S.
Place D+59.8 · U.S. D+19.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · +37.9 pts
Republican
Calvin Coolidge1924
+1.5pts R vs U.S.
Place R+26.7 · U.S. R+25.2 · a third-party candidate carried the Place · modeled estimate
Runner-up · Ronald Reagan, 1980 · −9.2 pts
current representation
Current officeholders
DRhodesia RansomState House · 13
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Assembly District 13 covers densely populated communities in the East Bay, where a D+13.3 presidential margin in 2024 reflects a heavily urban, diverse electorate that has voted reliably blue by wide margins for over a decade.
Across the recorded series it reached a Democratic high of 62.2 points in 1936 and a Republican high of 26.7 points in 1924. Between 2020 and 2024 the district moved 17.2 points toward the Republican candidate; the 2024 margin was 13.3 points.
A population of 487,872, a 20% non-Hispanic-white share, and a median household income of $90,706 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 50 and Assembly District 31.
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Assembly District 50
California
93.1twin score
population scale% White2016–2020 trajectory≠ % Asian
Assembly District 31
California
93.0twin score
population scale2012–2016 trajectory% White≠ % Asian
Assembly District 56
California
91.2twin score
population scale% Asian2012–2016 trajectory≠ median age
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
California 13th State House District. Akashic. https://akashic.app/sld-lower/06013/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Places within California 13th State House District
counties it covers1
Frequently asked questions
How did California 13th State House District vote in 2024?
In 2024, California 13th State House District voted Democratic by 13.3 points (D+13.3), carried by the Democratic candidate. Out of 146,176 votes cast, 80,336 went Democratic and 60,887 went Republican.
When did California 13th State House District last vote Republican?
The most recent presidential election in which California 13th State House District voted Republican was 1980.
How many people live in California 13th State House District?
California 13th State House District has a population of 487,872 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in California 13th State House District?
Median household income in California 13th State House District is $90,706 — above the national median of $80,734. The California state median is $99,122.
What is the political history of California 13th State House District?
Akashic tracks 38 presidential elections in California 13th State House District from 1876 to 2024. Of those, 33 went Democratic and 4 went Republican.