California 25th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +8.9% |
| 2012 | +9.4% |
| 2016 | +17.3% |
| 2020 | +16.4% |
| 2024 | +5.8% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 25 | D | 56.3%137,837 | 43.7%107,194 | 245,031 |
| 2022 | 25 | D | 57.4%87,641 | 42.6%65,101 | 152,742 |
| 2020 | 25 | R | 50.0%169,305 | 50.0%169,638 | 338,943 |
| 2018 | 25 | D | 54.4%133,209 | 45.6%111,813 | 245,022 |
| 2016 | 25 | R | 46.9%122,406 | 53.1%138,755 | 261,161 |
| 2014 | 25 | R | 0.0%0 | 100.0%114,072 | 114,072 |
| 2012 | 25 | R | 45.2%106,982 | 54.8%129,593 | 236,575 |
| 2010 | 25 | R | 38.2%73,028 | 61.8%118,308 | 191,336 |
| 2008 | 25 | R | 42.3%105,929 | 57.7%144,660 | 250,589 |
| 2006 | 25 | R | 35.7%55,913 | 60.0%93,987 | 156,773 |
| 2004 | 25 | R | 35.6%80,395 | 64.4%145,575 | 225,970 |
| 2002 | 25 | R | 31.1%38,674 | 65.0%80,775 | 124,336 |
| 2000 | 25 | R | 33.2%73,921 | 62.2%138,628 | 222,778 |
| 1998 | 25 | R | 0.0%0 | 74.7%114,013 | 152,682 |
| 1996 | 25 | R | 33.2%65,089 | 62.4%122,428 | 196,203 |
| 1994 | 25 | R | 31.4%53,445 | 64.9%110,301 | 169,971 |
| 1992 | 25 | R | 33.0%72,233 | 51.9%113,611 | 218,715 |
| 1990 | 25 | D | 70.0%48,120 | 24.8%17,021 | 68,717 |
| 1988 | 25 | D | 85.5%85,378 | 0.0%0 | 99,876 |
| 1986 | 25 | D | 76.1%62,692 | 21.3%17,558 | 82,413 |
| 1984 | 25 | D | 71.7%74,261 | 24.1%24,968 | 103,599 |
| 1982 | 25 | D | 85.5%71,106 | 0.0%0 | 83,166 |
| 1980 | 25 | D | 66.0%49,080 | 28.4%21,116 | 74,365 |
| 1978 | 25 | D | 67.4%45,881 | 32.6%22,205 | 68,086 |
| 1976 | 25 | D | 71.9%57,966 | 22.0%17,737 | 80,625 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 58.9%9,036,252 | 41.1%6,312,594 | 15,348,846 |
| 2022 | D | 61.1%6,621,621 | 38.9%4,222,029 | 10,843,650 |
| 2018 | D | 100.0%11,113,364 | 0.0%0 | 11,113,364 |
| 2016 | D | 100.0%12,244,170 | 0.0%0 | 12,244,170 |
| 2012 | D | 62.5%7,864,624 | 37.5%4,713,887 | 12,578,511 |
| 2010 | D | 52.2%5,218,441 | 42.2%4,217,366 | 10,000,093 |
| 2006 | D | 59.4%5,076,289 | 35.0%2,990,822 | 8,541,150 |
| 2004 | D | 57.7%6,955,728 | 37.8%4,555,922 | 12,053,242 |
| 2000 | D | 55.8%5,932,522 | 36.6%3,886,853 | 10,623,608 |
| 1998 | D | 53.1%4,410,056 | 43.0%3,575,078 | 8,311,905 |
| 1994 | D | 46.7%3,979,152 | 44.8%3,817,025 | 8,513,916 |
| 1992 | D | 47.9%5,173,467 | 43.0%4,644,182 | 10,799,436 |
| 1988 | R | 44.0%4,287,253 | 52.8%5,143,409 | 9,743,547 |
| 1986 | D | 49.3%3,646,672 | 47.9%3,541,804 | 7,398,462 |
| 1982 | R | 44.8%3,494,968 | 51.5%4,022,565 | 7,805,450 |
| 1980 | D | 56.5%4,704,098 | 37.1%3,091,671 | 8,324,012 |
| 1976 | R | 46.9%3,502,862 | 50.2%3,748,973 | 7,470,586 |
CA-25 covers parts of the Santa Clarita Valley and western San Fernando Valley, a suburban stretch where competitive margins have made it a consistent target for both parties in recent cycles.
Across the recorded series it reached a Democratic high of 17.3 points in 2016. Between 2020 and 2024 the district moved 10.6 points toward the Republican candidate; the 2024 margin was 5.8 points.
A population of 762,858, a 40% non-Hispanic-white share, and a median household income of $72,110 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 34 and Congressional District 7.
The congressional districts 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.
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 →
California 25th Congressional District. Akashic. https://akashic.app/cd/0625/. Accessed May 20, 2026. License: CC BY 4.0.