congressional districtCalifornia 20th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004R+47.5
2008R+32.3
2012R+34.6
2016R+32.0
2020R+26.2
2024R+32.2
net swing · 2004→2024D+15.3R+47.5 → R+32.2
vs. U.S. · 2024R+30.8R+32.2 vs R+1.5
presidential returns
2024 turnout 60.5% of 521,534 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
103,231
204,865
7,252
315,348
521,534
60.5%
2020
118,292
204,885
7,422
330,599
500,555†
66.0%
2016
80,315
162,594
14,205
257,114
474,604†
54.2%
2012
74,313
156,087
6,217
236,617
450,146†
52.6%
2008
80,739
158,665
1,605
241,009
420,011†
57.4%
2004
60,159
170,789
1,786
232,734
389,875†
59.7%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
District by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupCA-20CaliforniaUnited States
German8.1%6.8%12.5%
English7.7%6.3%9.5%
Irish6.6%5.9%9.4%
American4.0%2.8%5.3%
Italian2.7%3.4%4.8%
Portuguese1.3%——
Scottish1.3%0.9%1.3%
French0.9%1.3%1.6%
Mexican22.1%32.3%11.3%
Salvadoran0.5%2.0%0.7%
Guatemalan0.2%1.3%0.5%
Puerto Rican0.2%0.6%1.8%
Spaniard0.2%0.3%—
Spanish0.2%0.3%—
Aztec3.4%0.3%—
Filipino1.8%3.3%0.9%
Asian Indian1.2%2.3%1.4%
Chinese0.5%3.9%1.3%
Hmong0.4%0.3%—
Vietnamese0.2%1.7%0.6%
African American†2.6%4.4%9.9%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
CA-20
California
United States
Median age
34.5
37.9
39.1
Age 18–24
10.0%
9.1%
9.2%
Age 65 and older
11.9%
15.6%
17.2%
Household economy
Measure
CA-20
California
United States
Median household income
$84,414
$99,122
$84,427
Poverty rate
13.7%
12.0%
12.5%
Bachelor's degree or higher (25+)
18.4%
36.6%
35.6%
Languages at home
Measure
CA-20
California
United States
Speaks a non-English language at home
46.8%
44.4%
22.3%
Spanish
41.3%
28.4%
13.6%
Other Indo-European
1.6%
3.4%
2.0%
Tagalog (incl. Filipino)
1.0%
2.1%
0.6%
Other Asian & Pacific Island
1.1%
2.0%
1.1%
Religious landscape
Measure
CA-20
California
United States
Catholic
—
26.2%
18.6%
Evangelical Protestant
—
9.0%
16.5%
Unclaimed / not counted
—
55.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
California 20th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−47.5%
2008
−32.3%
2012
−34.6%
2016
−32.0%
2020
−26.2%
2024
−32.2%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 25 House races · 17 Senate races
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.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
20
R
0.0%0
100.0%288,788
288,788
2022
20
R
32.8%74,934
67.2%153,847
228,781
2020
20
D
76.8%236,896
23.2%71,658
308,554
2018
20
D
81.4%183,677
0.0%0
225,721
2016
20
D
70.8%180,980
29.2%74,811
255,791
2014
20
D
75.2%106,034
0.0%0
141,044
2012
20
D
74.1%172,996
25.9%60,566
233,562
2010
20
D
51.7%46,247
48.3%43,197
89,444
2008
20
D
74.3%93,023
25.7%32,118
125,141
2006
20
D
100.0%61,120
0.0%0
61,120
2004
20
D
53.4%61,005
46.6%53,231
114,236
2002
20
D
63.7%47,627
34.3%25,628
74,770
2000
20
D
52.3%66,235
45.5%57,563
126,534
1998
20
D
60.7%60,599
39.3%39,183
99,782
1996
20
D
56.5%65,381
39.1%45,276
115,705
1994
20
D
56.7%57,394
43.3%43,836
101,230
1992
20
D
64.9%72,679
35.1%39,388
112,067
1990
20
R
34.5%65,101
59.8%112,962
188,925
1988
20
R
27.1%62,037
71.1%162,779
229,006
1986
20
R
27.4%49,027
72.6%129,989
179,016
1984
20
R
29.1%62,307
70.9%151,732
214,039
1982
20
R
31.9%57,769
68.1%123,312
181,081
1980
20
R
17.0%43,024
78.8%199,674
253,303
1978
20
R
33.6%65,695
66.4%129,714
195,409
1976
20
R
32.8%71,193
67.2%146,158
217,351
U.S. Senate
The statewide Senate race, counted in this district — aggregated from the precinct-level returns that fall inside its boundaries (not a statewide figure).
Votes · MIT Election Lab (MEDSL) precinct returns (CC BY 4.0); aggregated to the district over VEST precinct geometry (CC BY-NC 4.0).
Year
Won
Democratic
Republican
Total
2024
R
32.4%99,242
67.6%206,690
305,932
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
2024 U.S. Senate — every candidate counted in this district
Steve Garvey · Republican67.6%206,690
Adam B Schiff · Democrat32.4%99,242
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.
Across the recorded series it reached a Republican high of 47.5 points in 2004. Between 2020 and 2024 the district moved 6.0 points toward the Republican candidate; the 2024 margin was 32.2 points.
A population of 762,823, a 36% non-Hispanic-white share, and a median household income of $84,414 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 4 and Congressional District 23.
Akashic
Political twins — districts
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
California 20th Congressional District. Akashic. https://akashic.app/cd/0620/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Embed this page
A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →
How did California 20th Congressional District vote in 2024?
In 2024, California 20th Congressional District voted Republican by 32.2 points (R+32.2), carried by the Republican candidate. Out of 315,348 votes cast, 103,231 went Democratic and 204,865 went Republican.
How many people live in California 20th Congressional District?
California 20th Congressional District has a population of 762,823 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in California 20th Congressional District?
Median household income in California 20th Congressional District is $84,414 — above the national median of $80,734. The California state median is $99,122.
What is the political history of California 20th Congressional District?
Akashic tracks 6 presidential elections in California 20th Congressional District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
