Akashic
1892–2024
Akashic
Eureka-Arcata, CA
presidential margin
2008D+28.12012D+27.12016D+24.72020D+33.12024D+28.4
full record · 1892 → 2024
D+28.4
2024
median income$61,160U.S. $80,734 · CA $99,122
median age39.9U.S. 39.1 · CA 37.9
poverty rate18.7%U.S. 12.5% · CA 12.0%
bachelor’s+ (25+)33.1%U.S. 35.6% · CA 36.6%
non-english11.1%U.S. 22.3% · CA 44.4%
race · ethnicity · ancestry
German13.4%
English12.8%
Irish11.8%
Mexican11.0%
Puerto Rican0.6%
Spanish0.5%
Hmong1.3%
Chinese0.5%
Filipino0.4%
African American†1.1%
religion
other traditions
Mainline1.7%
Other Christian1.3%
Hindu0.8%
Other faiths0.3%
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents, unaffiliated is the unclaimed remainder.

Eureka-Arcata, CA, California

Akashic
Eureka-Arcata, CAHarrisD+28.4
—
2024 presidential margin by county for Eureka-Arcata, CA, CAA map of the single county of Eureka-Arcata, CA, CA, outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.Humboldt County, CA · D+28.4
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic62.0%39,800
Donald TrumpRepublican33.6%21,559
Robert F. Kennedy Jr.American Independent4.5%2,869
D+60
R+60
A single county, filled by its 2024 D-vs-R margin. Hover it for the full result.
County-level results (1 county) — table
2024 presidential result by county for Eureka-Arcata, CA, CA — winner and D-vs-R margin.
CountyWinnerMargin
Humboldt County, CADemocraticD+28.4
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
62.0%Harris39,800
33.6%Trump21,559
4.5%Kennedy2,869
+28.4%
64,228
D
64.5%Biden44,768
31.4%Trump21,770
4.2%Jorgensen2,886
+33.1%
69,424
D
55.3%Clinton33,200
30.6%Trump18,373
14.1%Johnson8,441
+24.7%
60,014
D
59.7%Obama34,457
32.6%Romney18,825
7.6%Johnson4,404
+27.1%
57,686
D
62.0%Obama39,692
33.9%McCain21,713
4.0%Nader2,563
+28.1%
63,968
D
57.7%Kerry37,988
39.0%Bush25,714
3.3%Badnarik2,184
+18.6%
65,886
D
44.4%Gore24,851
41.5%Bush23,219
14.1%Nader7,902
+2.9%
55,972
D
44.2%Clinton24,628
35.5%Dole19,803
20.3%Perot11,326
+8.7%
55,757
D
48.1%Clinton28,854
30.5%Bush18,299
21.4%Perot12,868
+17.6%
60,021
D
57.1%Dukakis29,781
41.2%Bush21,460
1.7%Paul905
+16.0%
52,146
R
46.8%Mondale25,217
51.6%Reagan27,832
1.6%Bergland842
−4.9%
53,891
R
35.1%Carter17,113
49.4%Reagan24,047
15.5%Anderson7,532
−14.2%
48,692
D
54.2%Carter23,500
41.6%Ford18,034
4.2%Macbride1,838
+12.6%
43,372
R
46.2%McGovern21,132
48.8%Nixon22,345
5.0%Schmitz2,286
−2.7%
45,763
R
45.5%Humphrey16,476
46.2%Nixon16,719
8.3%Wallace3,019
−0.7%
36,214
D
66.3%Johnson25,515
33.5%Goldwater12,909
0.2%Hass75
+32.7%
38,499
D
52.7%Kennedy20,391
46.7%Nixon18,074
0.6%Byrd226
+6.0%
38,691
R
47.1%Stevenson17,025
52.6%Eisenhower19,019
0.4%Andrews133
−5.5%
36,177
R
39.4%Stevenson12,490
59.7%Eisenhower18,913
0.9%Hallinan284
−20.3%
31,687
D
48.4%Truman11,268
47.2%Dewey10,979
4.4%Thurmond1,019
+1.2%
23,266
D
56.8%Roosevelt12,083
42.9%Dewey9,127
0.2%Thomas50
+13.9%
21,260
D
56.0%Roosevelt12,329
43.0%Willkie9,470
1.0%Thomas225
+13.0%
22,024
D
62.9%Roosevelt11,909
36.0%Landon6,808
1.1%Lemke208
+27.0%
18,925
D
54.2%Roosevelt8,723
42.2%Hoover6,795
3.6%Thomas577
+12.0%
16,095
R
28.4%Smith3,726
69.8%Hoover9,162
1.9%Thomas247
−41.4%
13,135
R
7.1%Davis845
56.8%Coolidge6,767
36.1%La Follette4,298
−49.7%
11,910
R
19.0%Cox1,778
69.9%Harding6,528
11.1%Debs1,034
−50.9%
9,340
R
36.3%Wilson4,103
51.1%Hughes5,786
12.6%Benson1,424
−14.9%
11,313
O
33.8%Wilson2,887
0.0%Taft0
66.2%Roosevelt5,665
Roosevelt +32.5
8,552
R
18.6%Bryan1,206
65.0%Taft4,221
16.4%Debs1,065
−46.4%
6,492
R
18.6%Parker1,249
73.2%Roosevelt4,930
8.2%Debs554
−54.7%
6,733
R
28.9%Bryan1,698
66.3%McKinley3,902
4.8%Woolley284
−37.5%
5,884
R
43.4%Bryan2,465
55.4%McKinley3,142
1.2%Palmer68
−11.9%
5,675
R
34.0%Cleveland1,844
44.5%Harrison2,416
21.5%Weaver1,166
−10.5%
5,426
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1892 to 2024. Most recent: +28.4% in 2024.flipped D · 1988+28.4%DR18922024
Presidential margin over time
YearMargin (D minus R)
1892−10.5%
1896−11.9%
1900−37.5%
1904−54.7%
1908−46.4%
1912+33.8%
1916−14.9%
1920−50.9%
1924−49.7%
1928−41.4%
1932+12.0%
1936+27.0%
1940+13.0%
1944+13.9%
1948+1.2%
1952−20.3%
1956−5.5%
1960+6.0%
1964+32.7%
1968−0.7%
1972−2.7%
1976+12.6%
1980−14.2%
1984−4.9%
1988+16.0%
1992+17.6%
1996+8.7%
2000+2.9%
2004+18.6%
2008+28.1%
2012+27.1%
2016+24.7%
2020+33.1%
2024+28.4%
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
Voter registration in Eureka-Arcata, CARegistered voters by party of registration, 2022–2024. Latest total 82,097 in 2024.21.1K42.1K63.2K84.3K82.1K20222024
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Eureka-Arcata, CA
YearTotal registeredDemocraticRepublicanUnaffiliatedOther
202284,26739,18819,94417,4717,664
202482,09737,75220,23516,0708,040
Source: California Secretary of State

Anchored by Humboldt State University and the timber-to-tourism economic shift, the Eureka-Arcata metro consistently posts among California's strongest support for environmental ballot measures, driven by a younger, college-educated population relative to its rural surroundings.

Across the recorded series it reached a Democratic high of 33.8 points in 1912 and a Republican high of 54.7 points in 1904. Between 2020 and 2024 the metro moved 4.7 points toward the Republican candidate; the 2024 margin was 28.4 points.

A population of 134,541, a 70% non-Hispanic-white share, and a median household income of $61,160 describe the metro. The metro's voting pattern over the last decade is most similar to that of Eugene-Springfield, OR and Corvallis, OR.

Political twins — metros

The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Eugene-Springfield, OR
96.5twin score
2004–2024 trajectory
Corvallis, OR
90.0twin score
2004–2024 trajectory≠ college share
Flagstaff, AZ
89.9twin score
2004–2024 trajectory≠ median age

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.
Eureka-Arcata, CA, California. Akashic. https://akashic.app/cbsa/21700/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Eureka-Arcata, CA

counties1
Humboldt County

Frequently asked questions

How did Eureka-Arcata, CA, California vote in 2024?
In 2024, Eureka-Arcata, CA, California voted Democratic by 28.4 points (D+28.4), carried by the Democratic candidate. Out of 64,228 votes cast, 39,800 went Democratic and 21,559 went Republican.
When did Eureka-Arcata, CA, California last vote Republican?
The most recent presidential election in which Eureka-Arcata, CA, California voted Republican was 1984.
How many people live in Eureka-Arcata, CA, California?
Eureka-Arcata, CA, California has a population of 134,541 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Eureka-Arcata, CA, California?
Median household income in Eureka-Arcata, CA, California is $61,160 — below the national median of $80,734. The California state median is $99,122.
What is the political history of Eureka-Arcata, CA, California?
Akashic tracks 34 presidential elections in Eureka-Arcata, CA, California from 1892 to 2024. Of those, 18 went Democratic and 15 went Republican.