congressional districtCalifornia 13th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004R+2.7
2008D+18.9
2012D+20.0
2016D+21.1
2020D+17.7
2024D+0.4
net swing · 2004→2024D+3.1R+2.7 → D+0.4
vs. U.S. · 2024D+1.9D+0.4 vs R+1.5
presidential returns
2024 turnout 48.9% of 419,370 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
100,026
99,123
5,928
205,077
419,370
48.9%
2020
128,616
89,139
5,262
223,017
398,201†
56.0%
2016
99,606
63,219
9,900
172,725
377,780†
45.7%
2012
89,607
59,053
4,185
152,845
356,212†
42.9%
2008
86,670
58,873
1,355
146,898
338,390†
43.4%
2004
65,896
69,613
1,906
137,415
320,568†
42.9%
† 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-13CaliforniaUnited States
Mexican60.1%32.3%11.3%
Salvadoran1.0%2.0%0.7%
Puerto Rican0.6%0.6%1.8%
Guatemalan0.5%1.3%0.5%
Spaniard0.5%0.3%—
Spanish0.5%0.3%—
German6.4%6.8%12.5%
English5.3%6.3%9.5%
Irish5.2%5.9%9.4%
Portuguese4.0%——
Italian3.0%3.4%4.8%
American2.1%2.8%5.3%
French1.0%1.3%1.6%
Scottish1.0%0.9%1.3%
Asian Indian2.2%2.3%1.4%
Filipino1.6%3.3%0.9%
Hmong0.9%0.3%—
Chinese0.5%3.9%1.3%
Cambodian0.5%——
Vietnamese0.3%1.7%0.6%
Laotian0.2%——
Pakistani0.2%——
African American†3.2%4.4%9.9%
African0.2%0.3%0.5%
Aztec7.2%0.3%—
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-13
California
United States
Median age
33.1
37.9
39.1
Age 18–24
10.1%
9.1%
9.2%
Age 65 and older
13.0%
15.6%
17.2%
Household economy
Measure
CA-13
California
United States
Median household income
$73,754
$99,122
$84,427
Poverty rate
17.5%
12.0%
12.5%
Bachelor's degree or higher (25+)
18.9%
36.6%
35.6%
Languages at home
Measure
CA-13
California
United States
Speaks a non-English language at home
46.5%
44.4%
22.3%
Spanish
36.7%
28.4%
13.6%
Other Indo-European
4.2%
3.4%
2.0%
Tagalog (incl. Filipino)
1.1%
2.1%
0.6%
Other Asian & Pacific Island
2.2%
2.0%
1.1%
Religious landscape
Measure
CA-13
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 13th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−2.7%
2008
+18.9%
2012
+20.0%
2016
+21.1%
2020
+17.7%
2024
+0.4%
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
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's 13th covers the urban East Bay core around Oakland, where the 2024 presidential result landed at D+73 — a margin that places it among the most Democratic-leaning districts in the country by raw vote spread.
Across the recorded series it reached a Democratic high of 21.1 points in 2016 and a Republican high of 2.7 points in 2004. 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 →
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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 205,077 votes cast, 100,026 went Democratic and 99,123 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 6 presidential elections in California 13th Congressional District from 2004 to 2024. Of those, 5 went Democratic and 1 went Republican.
