Mountain House, California
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +13.7% |
| 2008 | +29.5% |
| 2012 | +33.9% |
| 2016 | +39.2% |
| 2020 | +36.4% |
| 2024 | +14.8% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 54.1%Harris4,188 | 39.3%Trump3,040 | 6.6% | D+14.8 | R+21.6 | D+16.3 | 7,741 | |
| D | 67.1%Biden5,177 | 30.7%Trump2,368 | 2.1% | D+36.4 | R+2.8 | D+32.0 | 7,710 | |
| D | 66.8%Clinton3,004 | 27.6%Trump1,241 | 5.5% | D+39.2 | D+5.3 | D+37.1 | 4,494 | |
| D | 65.7%Obama2,080 | 31.8%Romney1,007 | 2.5% | D+33.9 | D+4.4 | D+30.0 | 3,167 | |
| D | 64.0%Obama1,442 | 34.5%McCain777 | 1.5% | D+29.5 | D+15.8 | D+22.2 | 2,253 | |
| D | 56.0%Kerry1,122 | 42.3%Bush847 | 1.7% | D+13.7 | — | D+16.2 | 2,003 |
Mountain House is one of California's fastest-growing census-designated places, built almost entirely after 2000 and drawing heavily from Bay Area spillover migration — a demographic profile that makes its partisan lean an ongoing variable worth watching.
Across the recorded series it reached a Democratic high of 39.2 points in 2016. Between 2020 and 2024 the city moved 21.6 points toward the Republican candidate; the 2024 margin was 14.8 points.
A population of 25,513, a 22% non-Hispanic-white share, and a median household income of $177,163 describe the city. The city's voting pattern over the last decade is most similar to that of Lathrop and Dayton.
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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 →
Mountain House, California. Akashic. https://akashic.app/city/0649582/. Accessed May 20, 2026. License: CC BY 4.0.