Federal officeholders only. State and local officeholders are planned for the next data pass.
2026 election
On the ballot
CA-13 · U.S. House
DDemocrat Adam Gray holds the seat and is contesting it.
Primary held June 2, 2026. Akashic does not yet carry the nominees for this contest.
How the seat has run
Year
U.S. House
President
Ran ahead
2024
D+0.1Adam Gray
D+0.4
—
2022
R+0.4John Duarte
—
—
2020
D+80.7Barbara Lee
D+17.7
—
2018
D+88.4Barbara Lee
—
—
“Ran ahead” is how far the winning party’s House candidate ran ahead of that party’s presidential margin in the same district. A dash means the House race and the presidential figure were measured on different district lines, so the two cannot be subtracted — both are still shown unchanged.
U.S. House elections · 25 House
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
13
D
50.0%105,554
50.0%105,367
210,921
2022
13
R
49.8%66,496
50.2%67,060
133,556
2020
13
D
90.4%327,863
9.6%34,955
362,818
2018
13
D
88.4%260,580
0.0%0
294,837
2016
13
D
90.8%293,117
9.2%29,754
322,871
2014
13
D
88.5%168,491
11.5%21,940
190,431
2012
13
D
86.8%250,436
0.0%0
288,582
2010
13
D
72.0%118,278
27.7%45,575
164,378
2008
13
D
76.4%166,829
23.6%51,447
218,276
2006
13
D
74.9%110,756
25.1%37,141
147,897
2004
13
D
71.6%144,605
24.0%48,439
201,921
2002
13
D
71.1%86,495
22.1%26,852
121,723
2000
13
D
70.4%129,012
24.3%44,499
183,146
1998
13
D
71.2%101,671
26.6%38,050
142,787
1996
13
D
65.2%114,408
30.4%53,385
175,539
1994
13
D
64.6%97,344
30.2%45,555
150,642
1992
13
D
60.2%123,795
31.6%64,953
205,516
1990
13
D
58.0%97,286
35.7%59,773
167,646
1988
13
D
67.1%143,980
29.8%63,959
214,522
1986
13
D
69.7%107,696
30.3%46,754
154,450
1984
13
D
65.2%139,851
33.0%70,666
214,353
1982
13
D
65.9%110,805
31.4%52,806
168,164
1980
13
D
58.9%132,246
35.5%79,766
224,609
1978
13
D
57.5%100,809
39.5%69,306
175,361
1976
13
D
66.8%135,291
31.2%63,130
202,611
California 13th Congressional District sits in the Pacific Coast. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 54.2 points in 1936 and a Republican high of 35.5 points in 1924. Between 2020 and 2024 the district moved 17.3 points toward the Republican candidate; the 2024 margin was 0.4 points.
A population of 758,655, a 21% non-Hispanic-white share, and a median household income of $73,754 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 21 and Congressional District 22.
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 → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
California 13th Congressional District. Akashic. https://akashic.app/cd/0613/. Accessed May 20, 2026. License: CC BY 4.0.
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How did California 13th Congressional District vote in 2024?
In 2024, California 13th Congressional District voted a near-tie (D+0.4), carried by the Democratic candidate. Out of 206,621 votes cast, 100,914 went Democratic and 100,027 went Republican.
When did California 13th Congressional District last vote Republican?
The most recent presidential election in which California 13th Congressional District voted Republican was 2004.
How many people live in California 13th Congressional District?
California 13th Congressional District has a population of 758,655 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in California 13th Congressional District?
Median household income in California 13th Congressional District is $73,754 — below the national median of $80,734. The California state median is $99,122.
What is the political history of California 13th Congressional District?
Akashic tracks 38 presidential elections in California 13th Congressional District from 1876 to 2024. Of those, 33 went Democratic and 5 went Republican.