HarrisDemocratic41.5%3,405TrumpRepublican56.1%4,601OtherAll other candidates2.4%193
R+14.6- Lead
- 1,196
- Total
- 8,199
- vs nation
- R+13.1
- Turnout
- —
Akashiccity
Discovery Bay, 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
BidenDemocratic43.9%3,923TrumpRepublican54.2%4,840OtherAll other candidates1.9%169
R+10.3- Lead
- 917
- Total
- 8,932
- vs nation
- R+14.7
- Turnout
- —
ClintonDemocratic39.5%2,565TrumpRepublican55.2%3,582OtherAll other candidates5.3%347
R+15.7- Lead
- 1,017
- Total
- 6,494
- vs nation
- R+17.8
- Turnout
- —
ObamaDemocratic42.8%2,475RomneyRepublican54.5%3,151OtherAll other candidates2.7%155
R+11.7- Lead
- 676
- Total
- 5,781
- vs nation
- R+15.5
- Turnout
- —
ObamaDemocratic46.3%2,643McCainRepublican53.4%3,052OtherAll other candidates0.3%18
R+7.2- Lead
- 409
- Total
- 5,713
- vs nation
- R+14.4
- Turnout
- —
KerryDemocratic39.1%2,217BushRepublican59.7%3,384OtherAll other candidates1.3%72
R+20.6- Lead
- 1,167
- Total
- 5,673
- vs nation
- R+18.1
- Turnout
- —
Key facts
- 2024 presidential margin
- R+14.6MIT Election Lab
- Population
- 14,9112024 5-year
- Median household income
- $147,1172024 5-year
- White (non-Hispanic)
- 61.8%2024 5-year
- Black
- 5.7%2024 5-year
- Hispanic / Latino
- 18.1%2024 5-year
- Peak Republican margin
- R+20.6 in 2004MIT Election Lab
- Most similar
- Jamul, CA · twin score 88.4
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −20.6% |
| 2008 | −7.2% |
| 2012 | −11.7% |
| 2016 | −15.7% |
| 2020 | −10.3% |
| 2024 | −14.6% |
DemocraticRepublican
6 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| R | 41.5%Harris3,405 | 56.1%Trump4,601 | 2.4% | R+14.6 | R+4.3 | R+13.1 | 8,199 | |
| R | 43.9%Biden3,923 | 54.2%Trump4,840 | 1.9% | R+10.3 | D+5.4 | R+14.7 | 8,932 | |
| R | 39.5%Clinton2,565 | 55.2%Trump3,582 | 5.3% | R+15.7 | R+4.0 | R+17.8 | 6,494 | |
| R | 42.8%Obama2,475 | 54.5%Romney3,151 | 2.7% | R+11.7 | R+4.5 | R+15.5 | 5,781 | |
| R | 46.3%Obama2,643 | 53.4%McCain3,052 | 0.3% | R+7.2 | — | R+14.4 | 5,713 | |
| R | 39.1%Kerry2,217 | 59.7%Bush3,384 | 1.3% | R+20.6 | — | R+18.1 | 5,673 |
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 | 42.7%3,326 | 57.3%4,467 | 7,793 |
| 2020 | R | 43.1%3,672 | 56.9%4,849 | 8,521 |
Discovery Bay sits at the eastern fringe of Contra Costa County, where a maze of Delta waterways attracts a boat-owning, homeowner-heavy demographic that tilts the precinct noticeably rightward relative to the surrounding Bay Area region.
Across the recorded series it reached a Republican high of 20.6 points in 2004. Between 2020 and 2024 the city moved 4.3 points toward the Republican candidate; the 2024 margin was 14.6 points.
A population of 14,911, a 62% non-Hispanic-white share, and a median household income of $147,117 describe the city. The city's voting pattern over the last decade is most similar to that of Jamul and Rancho San Diego.
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Jamul
California
88.4twin score
median incomemedian agecollege share
Rancho San Diego
California
84.1twin score
median agecollege share2016–2020 trajectory
Lakeway
Texas
83.6twin score
median age2016–2024 trajectory≠ 12-yr trend
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.
Discovery Bay, California. Akashic. https://akashic.app/city/0619339/. 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 Discovery Bay, California vote in 2024?
In 2024, Discovery Bay, California voted Republican by 14.6 points (R+14.6), carried by the Republican candidate. Out of 8,199 votes cast, 3,405 went Democratic and 4,601 went Republican.
How many people live in Discovery Bay, California?
Discovery Bay, California has a population of 14,911 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Discovery Bay, California?
Median household income in Discovery Bay, California is $147,117 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Discovery Bay, California?
Akashic tracks 6 presidential elections in Discovery Bay, California from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.