HarrisDemocratic75.4%169,872TrumpRepublican20.9%47,170OtherAll other candidates3.7%8,244
D+54.5- Lead
- 122,702
- Total
- 225,286
- vs nation
- D+55.9
modeled Census-place estimatemodeled estimate
Akashicstate house district
California 23rd State House District
Office (updates table and map)
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
BidenDemocratic78.4%194,290TrumpRepublican19.4%48,063OtherAll other candidates2.2%5,379
D+59.0- Lead
- 146,227
- Total
- 247,732
- vs nation
- D+54.6
modeled Census-place estimatemodeled estimate
ClintonDemocratic75.3%164,532TrumpRepublican17.9%39,089OtherAll other candidates6.8%14,867
D+57.4- Lead
- 125,443
- Total
- 218,488
- vs nation
- D+55.3
modeled Census-place estimatemodeled estimate
ObamaDemocratic73.1%144,202RomneyRepublican24.2%47,669OtherAll other candidates2.7%5,352
D+48.9- Lead
- 96,533
- Total
- 197,223
- vs nation
- D+45.1
modeled Census-place estimatemodeled estimate
ObamaDemocratic73.1%150,273McCainRepublican24.8%51,070OtherAll other candidates2.0%4,174
D+48.3- Lead
- 99,203
- Total
- 205,517
- vs nation
- D+41.0
modeled Census-place estimatemodeled estimate
KerryDemocratic68.6%128,007BushRepublican30.1%56,237OtherAll other candidates1.2%2,318
D+38.5- Lead
- 71,770
- Total
- 186,562
- vs nation
- D+40.9
modeled Census-place estimatemodeled estimate
GoreDemocratic64.3%109,406BushRepublican30.5%51,908OtherAll other candidates5.2%8,881
D+33.8- Lead
- 57,498
- Total
- 170,195
- vs nation
- D+33.3
modeled Census-place estimatemodeled estimate
ClintonDemocratic60.1%98,602DoleRepublican28.4%46,632OtherAll other candidates11.5%18,881
D+31.7- Lead
- 51,970
- Total
- 164,115
- vs nation
- D+23.1
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- D+54.5MIT Election Lab
- Population
- 473,3662024 5-year
- Population density
- 1,025 / sq mi2024 5-year · TIGER/Line
- Land area
- 462 sq miTIGER/Line
- Median household income
- $198,8512024 5-year
- White (non-Hispanic)
- 47.3%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 13.3%2024 5-year
- Peak Democratic margin
- D+59.0 in 2020MIT Election Lab
- Peak Republican margin
- R+45.3 in 1924MIT Election Lab
- Most similar
- Assembly District 21, CA · twin score 97.4
presidential history
Party record book
California 23rd 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
Joe Biden2020
78.4%
194,290 votes · D+59.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 75.4%
Republican
Warren G. Harding1920
66.0%
5,016 votes · R+42.4 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 60.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
194,290votes
78.4% of the vote · D+59.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 169,872 votes
Republican
Ronald Reagan1984
82,016votes
50.8% of the vote · R+3.0 · modeled estimate
Runner-up · Richard Nixon, 1972 · 72,475 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
Kamala Harris2024
+55.9pts D vs U.S.
Place D+54.5 · U.S. R+1.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +55.3 pts
Republican
Calvin Coolidge1924
+20.1pts R vs U.S.
Place R+45.3 · U.S. R+25.2 · modeled estimate
Runner-up · Warren G. Harding, 1920 · +16.2 pts
current representation
Current officeholders
DMarc BermanState House · 23
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 23 recorded a 54.5-point Democratic presidential margin in 2024, reflecting a densely populated urban core where competitive general elections are rare and primary contests carry the decisive weight.
Across the recorded series it reached a Democratic high of 59.0 points in 2020 and a Republican high of 45.3 points in 1924. Between 2020 and 2024 the district moved 4.6 points toward the Republican candidate; the 2024 margin was 54.5 points.
A population of 473,366, a 47% non-Hispanic-white share, and a median household income of $198,851 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 21 and Assembly District 28.
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 21
California
97.4twin score
2016–2024 trajectory% Asian≠ median income
Assembly District 28
California
97.1twin score
2016–2024 trajectorypopulation scale≠ % Asian
Assembly District 16
California
96.2twin score
% Asianmedian incomepopulation scale≠ Scottish ancestry
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
California 23rd State House District. Akashic. https://akashic.app/sld-lower/06023/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
California at the ballot boxAll elections →
Places within California 23rd State House District
counties it covers2
Frequently asked questions
How did California 23rd State House District vote in 2024?
In 2024, California 23rd State House District voted Democratic by 54.5 points (D+54.5), carried by the Democratic candidate. Out of 225,286 votes cast, 169,872 went Democratic and 47,170 went Republican.
When did California 23rd State House District last vote Republican?
The most recent presidential election in which California 23rd State House District voted Republican was 1984.
How many people live in California 23rd State House District?
California 23rd State House District has a population of 473,366 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in California 23rd State House District?
Median household income in California 23rd State House District is $198,851 — above the national median of $80,734. The California state median is $99,122.
What is the political history of California 23rd State House District?
Akashic tracks 38 presidential elections in California 23rd State House District from 1876 to 2024. Of those, 24 went Democratic and 13 went Republican.