California 20th Congressional District, California: Republican loyalist district. In 2024, voted R+19%. Democratic peak: D+46 in 1912.
Key facts
- 2024 presidential margin
- R+19MIT Election Lab
- Political archetype
- Republican loyalistAkashic typology
- Population
- 1,088,2392024 5-year
- Median household income
- $71,0462024 5-year
- White (non-Hispanic)
- 40.6%2024 5-year
- Black
- 4.0%2024 5-year
- Hispanic / Latino
- 59.4%2024 5-year
- Peak Democratic margin
- D+46 in 1912MIT Election Lab
- Peak Republican margin
- R+31 in 1924MIT Election Lab
Predecessors: MCCARTHY, Kevin (2023–2025), PANETTA, James Varni (2021–2023), PANETTA, James Varni (2019–2021), PANETTA, James Varni (2017–2019)
Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 129,890 | 192,263 | 330,297 | ||
| R | 161,138 | 186,682 | 356,046 | ||
| R | 118,069 | 144,221 | 281,625 | ||
| R | 106,311 | 141,334 | 254,312 | ||
| R | 111,486 | 149,806 | 267,244 | ||
| R | 82,526 | 159,063 | 244,013 | ||
| R | 80,200 | 127,812 | 214,847 | ||
| R | 77,752 | 107,235 | 202,934 | ||
| R | 74,834 | 94,228 | 211,302 | ||
| R | 70,862 | 106,082 | 179,120 | ||
| R | 64,293 | 113,258 | 179,300 | ||
| R | 54,041 | 88,811 | 153,198 | ||
| R | 61,835 | 70,854 | 135,431 | ||
| R | 53,145 | 83,890 | 143,069 | ||
| R | 57,464 | 64,737 | 135,529 | ||
| D | 79,320 | 52,090 | 131,544 | ||
| R | 61,811 | 63,675 | 126,050 | ||
| R | 54,832 | 56,056 | 111,251 | ||
| R | 47,010 | 57,200 | 105,007 | ||
| D | 42,633 | 33,505 | 78,276 | ||
| D | 34,813 | 28,252 | 63,448 | ||
| D | 42,796 | 26,874 | 70,404 | ||
| D | 36,785 | 13,368 | 50,837 | ||
| D | 28,839 | 12,147 | 43,028 | ||
| R | 12,856 | 21,205 | 34,432 | ||
| R | 5,250 | 14,796 | 30,884 | ||
| R | 8,878 | 13,403 | 24,100 | ||
| D | 13,686 | 10,358 | 25,985 | ||
| O | 8,123 | 0 | 17,483 | ||
| R | 3,838 | 4,434 | 9,264 | ||
| R | 2,742 | 3,922 | 7,651 | ||
| D | 3,468 | 2,975 | 6,738 | ||
| D | 3,666 | 2,384 | 6,191 | ||
| D | 3,110 | 2,046 | 7,062 | ||
| D | 3,022 | 2,513 | 5,796 | ||
| D | 1,931 | 1,452 | 3,556 | ||
| D | 1,497 | 1,027 | 2,632 | ||
| D | 1,639 | 1,101 | 2,740 |
U.S. Senate
| Year | Won | D % | R % | Total |
|---|---|---|---|---|
| 2024 | D | 58.9% | 41.1% | 15,348,846 |
| 2022 | D | 61.1% | 38.9% | 10,843,650 |
| 2018 | D | 100.0% | 0.0% | 11,113,364 |
| 2016 | D | 100.0% | 0.0% | 12,244,170 |
| 2012 | D | 62.5% | 37.5% | 12,578,511 |
| 2010 | D | 52.2% | 42.2% | 10,000,160 |
| 2006 | D | 59.4% | 35.0% | 8,541,476 |
| 2004 | D | 57.7% | 37.8% | 12,053,295 |
| 2000 | D | 55.8% | 36.6% | 10,623,608 |
| 1998 | D | 53.1% | 43.0% | 8,311,905 |
| 1994 | D | 46.7% | 44.8% | 8,514,089 |
| 1992 | D | 47.9% | 43.0% | 10,799,703 |
| 1988 | R | 44.0% | 52.8% | 9,743,598 |
| 1986 | D | 49.3% | 47.9% | 7,398,462 |
| 1982 | R | 44.8% | 51.5% | 7,805,450 |
| 1980 | D | 56.5% | 37.1% | 8,324,012 |
| 1976 | R | 46.9% | 50.2% | 7,470,586 |
Demographics
Anchored in the Los Angeles area, CA-20 posted a 37.8-point Democratic presidential margin in 2024, placing it among the most lopsided congressional districts in the state and reflecting a heavily urban, majority-minority electorate.
The Republican margin in California 20th Congressional District reached its widest at thirty-one points in 2004. The margin in 2024 was nineteen points, in line with the district's deep historical pattern.
Its loyalty is rooted in its place. Median household income of $71,046, a 41% non-Hispanic-white share, and a population of 1,088,239 together describe a district whose political habits are deeply settled.
Compare two places, side by side
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Congressional District 20, California. Akashic. https://akashic.app/cd/0620/. Accessed May 20, 2026. License: CC BY 4.0.