† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
2 counties by 2024 margin · County returns · 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
GroupEurekaCaliforniaUnited States
German13.6%6.8%12.5%
English12.8%6.3%9.5%
Irish11.6%5.9%9.4%
Italian5.1%3.4%4.8%
Scottish3.3%0.9%1.3%
American2.8%2.8%5.3%
French2.7%1.3%1.6%
Portuguese2.1%——
Mexican11.8%32.3%11.3%
Spanish0.6%0.3%—
Puerto Rican0.6%0.6%1.8%
Spaniard0.4%0.3%—
Salvadoran0.2%2.0%0.7%
Cuban0.2%—0.7%
Hmong1.1%0.3%—
Chinese0.5%3.9%1.3%
Filipino0.4%3.3%0.9%
Asian Indian0.2%2.3%1.4%
Pakistani0.2%——
African American†1.3%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
Eureka
California
United States
Median age
39.9
37.9
39.1
Age 18–24
11.1%
9.1%
9.2%
Age 65 and older
19.8%
15.6%
17.2%
Household economy
Measure
Eureka
California
United States
Median household income
$62,149
$99,122
$84,427
Poverty rate
17.7%
12.0%
12.5%
Bachelor's degree or higher (25+)
31.1%
36.6%
35.6%
Languages at home
Measure
Eureka
California
United States
Speaks a non-English language at home
11.4%
44.4%
22.3%
Spanish
7.1%
28.4%
13.6%
Other Asian & Pacific Island
1.3%
2.0%
1.1%
Religious landscape
Measure
Eureka
California
United States
Catholic
5.8%
26.2%
18.6%
Evangelical Protestant
5.9%
9.0%
16.5%
Unclaimed / not counted
81.6%
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.
Eureka, California
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−7.7%
1896
−10.8%
1900
−34.4%
1904
−52.7%
1908
−45.0%
1912
+34.2%
1916
−13.7%
1920
−49.2%
1924
−49.0%
1928
−38.6%
1932
+14.4%
1936
+26.3%
1940
+10.9%
1944
+12.0%
1948
−0.3%
1952
−21.1%
1956
−5.7%
1960
+5.6%
1964
+32.1%
1968
−1.0%
1972
−3.9%
1976
+11.8%
1980
−15.5%
1984
−6.4%
1988
+13.7%
1992
+16.0%
1996
+7.4%
2000
+0.3%
2004
+14.4%
2008
+23.6%
2012
+22.3%
2016
+18.9%
2020
+26.2%
2024
+22.1%
DemocraticRepublican
34 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.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
58.9%Harris44,066
36.8%Trump27,558
1.5%Stein1,154 +4
D+22.1
R+4.2
D+23.5
74,792
All 7 candidates in 2024 · 5 minor / independent
Kamala D HarrisDemocratic58.9%44,066
Donald J TrumpRepublican36.8%27,558
Jill SteinIndependent1.5%1,154
Robert F Kennedy Jr.Independent1.5%1,133
Claudia De La CruzIndependent0.7%508
Chase OliverLibertarian0.5%367
OtherAll other candidates0.0%6
D
61.1%Biden49,445
34.9%Trump28,231
4.0%
D+26.2
D+7.3
D+21.8
80,877
D
52.7%Clinton36,685
33.8%Trump23,507
13.5%
D+18.9
R+3.3
D+16.9
69,572
D
57.6%Obama38,248
35.3%Romney23,439
7.2%
D+22.3
R+1.3
D+18.4
66,456
D
59.9%Obama44,015
36.3%McCain26,680
3.8%
D+23.6
D+9.2
D+16.3
73,499
D
55.6%Kerry41,880
41.3%Bush31,070
3.1%
D+14.4
D+14.0
D+16.8
75,307
D
43.5%Gore27,968
43.2%Bush27,745
13.3%
D+0.3
R+7.1
R+0.2
64,266
D
43.7%Clinton28,280
36.3%Dole23,473
19.9%
D+7.4
R+8.6
R+1.1
64,646
D
46.8%Clinton32,493
30.8%Bush21,382
22.3%
D+16.0
D+2.3
D+10.5
69,374
D
56.0%Dukakis33,368
42.2%Bush25,174
1.8%
D+13.7
D+20.2
D+21.5
59,614
R
46.0%Mondale27,913
52.4%Reagan31,828
1.6%
R+6.4
D+9.0
D+11.8
60,732
R
34.9%Carter19,451
50.4%Reagan28,063
14.7%
R+15.5
R+27.3
R+5.7
55,679
D
53.8%Carter26,289
42.0%Ford20,515
4.2%
D+11.8
D+15.7
D+9.8
48,850
R
45.3%McGovern23,288
49.2%Nixon25,272
5.5%
R+3.9
R+2.9
D+19.3
51,411
R
45.2%Humphrey18,712
46.2%Nixon19,106
8.6%
R+1.0
R+33.0
R+0.3
41,382
D
65.9%Johnson29,167
33.9%Goldwater14,984
0.2%
D+32.1
D+26.5
D+9.5
44,226
D
52.5%Kennedy23,616
46.9%Nixon21,098
0.6%
D+5.6
D+11.3
D+5.4
44,985
R
47.0%Stevenson19,577
52.7%Eisenhower21,937
0.4%
R+5.7
D+15.4
D+9.7
41,664
R
39.0%Stevenson14,068
60.1%Eisenhower21,670
0.9%
R+21.1
R+20.8
R+10.3
36,071
R
47.7%Truman12,440
48.0%Dewey12,520
4.4%
R+0.3
R+12.3
R+4.8
26,106
D
55.9%Roosevelt12,901
43.9%Dewey10,138
0.2%
D+12.0
D+1.0
D+4.5
23,090
D
54.9%Roosevelt13,363
44.0%Willkie10,703
1.1%
D+10.9
R+15.3
D+1.0
24,326
D
62.6%Roosevelt13,201
36.3%Landon7,661
1.1%
D+26.3
D+11.9
D+2.0
21,099
D
55.3%Roosevelt10,042
40.9%Hoover7,432
3.7%
D+14.4
D+53.0
R+3.4
18,154
R
29.8%Smith4,325
68.4%Hoover9,933
1.8%
R+38.6
D+10.4
R+21.2
14,515
R
7.5%Davis967
56.5%Coolidge7,297
36.0%
R+49.0
D+0.2
R+23.8
12,917
R
20.0%Cox2,057
69.2%Harding7,124
10.8%
R+49.2
R+35.5
R+23.0
10,292
R
36.7%Wilson4,574
50.5%Hughes6,285
12.8%
R+13.7
R+47.9
R+16.9
12,452
O
34.2%Wilson3,210
0.0%Taft0
65.8%
Roosevelt +31.7
D+79.2
D+14.6
9,395
R
19.4%Bryan1,408
64.4%Taft4,671
16.2%
R+45.0
D+7.7
R+35.4
7,251
R
19.3%Parker1,436
72.0%Roosevelt5,359
8.7%
R+52.7
R+18.3
R+33.0
7,446
R
30.5%Bryan1,989
64.9%McKinley4,236
4.7%
R+34.4
R+23.6
R+26.9
6,529
R
43.9%Bryan2,799
54.7%McKinley3,487
1.3%
R+10.8
R+3.1
R+4.7
6,372
R
36.0%Cleveland2,183
43.7%Harrison2,651
20.3%
R+7.7
—
R+9.4
6,069
voter registration
Registered voters
By party of registration, over time
Party registration · 2024D+16.3
vs
Presidential vote · 2024D+22.1
Registration leans Democratic; the presidential vote runs 5.7 points more Republican.
96,880 registered voters · 2024 · down from 99,314 in 2022
Domestic migration in Eureka in Eureka: net domestic migration by year
Year
Net domestic migration
2011
−346
2012
−1,184
2013
−870
2014
−722
2015
+440
2016
+1,191
2017
+120
2018
+138
2019
−572
2021
−1,034
2022
−591
2023
−720
2024
−798
2025
−666
The Eureka market covers Humboldt and Del Norte counties on California's far-north coast. It voted Democratic by D+26.2 in 2020 and D+22.1 in 2024. Median household income was $62,149 in the 2024 ACS 5-year, below the national figure of $80,734.
Across the recorded series it reached a Democratic high of 34.2 points in 1912 and a Republican high of 52.7 points in 1904. Between 2020 and 2024 the market moved 4.2 points toward the Republican candidate; the 2024 margin was 22.1 points.
A population of 161,648, a 68% non-Hispanic-white share, and a median household income of $62,149 describe the market. The market's voting pattern over the last decade is most similar to that of Eugene and Juneau.
Akashic
Political twins — media markets
The media markets 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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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Eureka, California. Akashic. https://akashic.app/dma/802/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Eureka, California voted Democratic by 22.1 points (D+22.1), carried by the Democratic candidate. Out of 74,792 votes cast, 44,066 went Democratic and 27,558 went Republican.
When did Eureka, California last vote Republican?
The most recent presidential election in which Eureka, California voted Republican was 1984.
How many people live in Eureka, California?
Eureka, California has a population of 161,648 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Eureka, California?
Median household income in Eureka, California is $62,149 — below the national median of $80,734. The California state median is $99,122.
What is the political history of Eureka, California?
Akashic tracks 34 presidential elections in Eureka, California from 1892 to 2024. Of those, 17 went Democratic and 16 went Republican.
