HarrisDemocratic42.5%4,449TrumpRepublican54.9%5,753OtherAll other candidates2.6%277
R+12.4- Lead
- 1,304
- Total
- 10,479
- vs nation
- R+11.0
- Turnout
- —
Akashiccity
Castaic, CA
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
President results by year
Vote totals, margins, and source status
BidenDemocratic44.2%4,588TrumpRepublican53.7%5,578OtherAll other candidates2.1%217
R+9.5- Lead
- 990
- Total
- 10,383
- vs nation
- R+14.0
- Turnout
- —
ClintonDemocratic41.6%3,406TrumpRepublican52.7%4,317OtherAll other candidates5.7%467
R+11.1- Lead
- 911
- Total
- 8,190
- vs nation
- R+13.2
- Turnout
- —
ObamaDemocratic41.1%3,227RomneyRepublican56.4%4,434OtherAll other candidates2.5%195
R+15.4- Lead
- 1,207
- Total
- 7,856
- vs nation
- R+19.2
- Turnout
- —
ObamaDemocratic46.7%3,637McCainRepublican53.0%4,129OtherAll other candidates0.3%20
R+6.3- Lead
- 492
- Total
- 7,786
- vs nation
- R+13.6
- Turnout
- —
KerryDemocratic39.4%3,196BushRepublican59.6%4,826OtherAll other candidates1.0%82
R+20.1- Lead
- 1,630
- Total
- 8,104
- vs nation
- R+17.7
- Turnout
- —
Key facts
- 2024 presidential margin
- R+12.4MIT Election Lab
- Population
- 17,9992024 5-year
- Median household income
- $129,8632024 5-year
- White (non-Hispanic)
- 43.1%2024 5-year
- Black
- 1.5%2024 5-year
- Hispanic / Latino
- 36.2%2024 5-year
- Peak Republican margin
- R+20.1 in 2004MIT Election Lab
- Most similar
- Quartz Hill, CA · twin score 84.5
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −20.1% |
| 2008 | −6.3% |
| 2012 | −15.4% |
| 2016 | −11.1% |
| 2020 | −9.5% |
| 2024 | −12.4% |
DemocraticRepublican
6 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| R | 42.5%Harris4,449 | 54.9%Trump5,753 | 2.6% | R+12.4 | — | R+11.0 | 10,479 | |
| R | 44.2%Biden4,588 | 53.7%Trump5,578 | 2.1% | R+9.5 | D+1.6 | R+14.0 | 10,383 | |
| R | 41.6%Clinton3,406 | 52.7%Trump4,317 | 5.7% | R+11.1 | — | R+13.2 | 8,190 | |
| R | 41.1%Obama3,227 | 56.4%Romney4,434 | 2.5% | R+15.4 | — | R+19.2 | 7,856 | |
| R | 46.7%Obama3,637 | 53.0%McCain4,129 | 0.3% | R+6.3 | — | R+13.6 | 7,786 | |
| R | 39.4%Kerry3,196 | 59.6%Bush4,826 | 1.0% | R+20.1 | — | R+17.7 | 8,104 |
Federal and statewide elections · 2 House
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 42.3%4,312 | 57.7%5,880 | 10,192 |
| 2020 | R | 40.2%4,070 | 59.8%6,047 | 10,117 |
Castaic is an unincorporated Los Angeles County CDP that grew rapidly with master-planned housing, drawing working families whose voting behavior tends to track closely with the broader Santa Clarita Valley's competitive suburban margins.
Across the recorded series it reached a Republican high of 20.1 points in 2004. Between 2020 and 2024 the city moved 2.9 points toward the Republican candidate; the 2024 margin was 12.4 points.
A population of 17,999, a 43% non-Hispanic-white share, and a median household income of $129,863 describe the city. The city's voting pattern over the last decade is most similar to that of Quartz Hill and Woodcrest.
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Quartz Hill
California
84.5twin score
% Latino12-yr trend2012 margin
Woodcrest
California
84.3twin score
% Latinomedian income2012–2020 trajectory≠ Scottish ancestry
Glendora
California
80.2twin score
% Latino2008–2012 trajectorymedian income≠ population scale
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.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Castaic, California. Akashic. https://akashic.app/city/0611796/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
California at the ballot boxAll elections →
Frequently asked questions
How did Castaic, California vote in 2024?
In 2024, Castaic, California voted Republican by 12.4 points (R+12.4), carried by the Republican candidate. Out of 10,479 votes cast, 4,449 went Democratic and 5,753 went Republican.
How many people live in Castaic, California?
Castaic, California has a population of 17,999 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Castaic, California?
Median household income in Castaic, California is $129,863 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Castaic, California?
Akashic tracks 6 presidential elections in Castaic, California from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.