California 9th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +23.4% |
| 2012 | +26.9% |
| 2016 | +26.6% |
| 2020 | +26.2% |
| 2024 | +11.4% |
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 | 9 | D | 51.8%130,183 | 48.2%121,174 | 251,357 |
| 2022 | 9 | D | 54.8%95,598 | 45.2%78,802 | 174,400 |
| 2020 | 9 | D | 57.6%174,252 | 42.4%128,358 | 302,610 |
| 2018 | 9 | D | 56.5%113,414 | 43.5%87,349 | 200,763 |
| 2016 | 9 | D | 57.4%133,163 | 42.6%98,992 | 232,155 |
| 2014 | 9 | D | 52.4%63,475 | 47.6%57,729 | 121,204 |
| 2012 | 9 | D | 55.6%118,373 | 44.4%94,704 | 213,077 |
| 2010 | 9 | D | 84.3%180,400 | 10.8%23,054 | 214,085 |
| 2008 | 9 | D | 86.1%238,915 | 9.7%26,917 | 277,600 |
| 2006 | 9 | D | 86.3%167,245 | 10.7%20,786 | 193,686 |
| 2004 | 9 | D | 84.5%215,630 | 12.3%31,278 | 255,039 |
| 2002 | 9 | D | 81.4%135,893 | 15.2%25,333 | 166,917 |
| 2000 | 9 | D | 85.0%182,352 | 9.8%21,033 | 214,650 |
| 1998 | 9 | D | 82.8%140,722 | 13.2%22,431 | 169,895 |
| 1996 | 9 | D | 77.0%154,806 | 18.5%37,126 | 200,968 |
| 1994 | 9 | D | 72.2%129,233 | 22.6%40,448 | 178,875 |
| 1992 | 9 | D | 71.9%164,265 | 23.5%53,707 | 228,467 |
| 1990 | 9 | D | 58.4%94,739 | 41.6%67,412 | 162,151 |
| 1988 | 9 | D | 73.0%152,866 | 27.0%56,656 | 209,522 |
| 1986 | 9 | D | 76.3%159,109 | 23.7%49,300 | 208,409 |
| 1984 | 9 | D | 69.9%136,511 | 26.3%51,399 | 195,308 |
| 1982 | 9 | D | 60.7%104,393 | 39.3%67,702 | 172,095 |
| 1980 | 9 | D | 55.3%90,504 | 41.1%67,265 | 163,592 |
| 1978 | 9 | D | 65.4%88,179 | 30.5%41,138 | 134,879 |
| 1976 | 9 | D | 70.8%116,398 | 27.1%44,607 | 164,391 |
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 |
California's 9th congressional district, anchored in the eastern Bay Area, returned a D+5.1 margin in 2024 — narrow by California standards and a signal of genuine swing potential in a state more often taken for granted.
Across the recorded series it reached a Democratic high of 26.9 points in 2012. Between 2020 and 2024 the district moved 14.8 points toward the Republican candidate; the 2024 margin was 11.4 points.
A population of 761,456, a 32% non-Hispanic-white share, and a median household income of $98,898 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 33 and Congressional District 35.
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 9th Congressional District. Akashic. https://akashic.app/cd/0609/. Accessed May 20, 2026. License: CC BY 4.0.