Eureka-Arcata, CA, California: Populist metro. In 2024, voted D+28%. Republican peak: R+55 in 1904.
Key facts
- 2024 presidential margin
- D+28MIT Election Lab
- Political archetype
- PopulistAkashic typology
- Population
- 134,5412024 5-year
- Median household income
- $61,1602024 5-year
- White (non-Hispanic)
- 72.1%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 14.2%2024 5-year
- Peak Democratic margin
- D+34 in 1912MIT Election Lab
- Peak Republican margin
- R+55 in 1904MIT Election Lab
Constituent county margins for Eureka-Arcata, CA, CAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 39,800 | 21,559 | 64,228 | ||
| D | 44,768 | 21,770 | 69,424 | ||
| D | 33,200 | 18,373 | 60,014 | ||
| D | 34,457 | 18,825 | 57,686 | ||
| D | 39,692 | 21,713 | 63,968 | ||
| D | 37,988 | 25,714 | 65,886 | ||
| D | 24,851 | 23,219 | 55,972 | ||
| D | 24,628 | 19,803 | 55,757 | ||
| D | 28,854 | 18,299 | 60,021 | ||
| D | 29,781 | 21,460 | 52,146 | ||
| R | 25,217 | 27,832 | 53,891 | ||
| R | 17,113 | 24,047 | 48,692 | ||
| D | 23,500 | 18,034 | 43,372 | ||
| R | 21,132 | 22,345 | 45,763 | ||
| R | 16,476 | 16,719 | 36,214 | ||
| D | 25,515 | 12,909 | 38,499 | ||
| D | 20,391 | 18,074 | 38,691 | ||
| R | 17,025 | 19,019 | 36,177 | ||
| R | 12,490 | 18,913 | 31,687 | ||
| D | 11,268 | 10,979 | 23,266 | ||
| D | 12,083 | 9,127 | 21,260 | ||
| D | 12,329 | 9,470 | 22,024 | ||
| D | 11,909 | 6,808 | 18,925 | ||
| D | 8,723 | 6,795 | 16,095 | ||
| R | 3,726 | 9,162 | 13,135 | ||
| R | 845 | 6,767 | 11,910 | ||
| R | 1,778 | 6,528 | 9,340 | ||
| R | 4,103 | 5,786 | 11,313 | ||
| O | 2,887 | 0 | 8,552 | ||
| R | 1,206 | 4,221 | 6,492 | ||
| R | 1,249 | 4,930 | 6,733 | ||
| R | 1,698 | 3,902 | 5,884 | ||
| R | 2,465 | 3,142 | 5,675 | ||
| R | 1,844 | 2,416 | 5,426 | ||
| R | 2,014 | 2,772 | 4,956 | ||
| R | 1,450 | 2,184 | 4,053 | ||
| R | 735 | 1,420 | 2,881 | ||
| R | 1,127 | 1,637 | 2,765 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
13.4%
English
12.8%
Irish
11.8%
Italian
5.5%
Scottish
3.4%
French
2.8%
American
2.3%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 39.9 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$61,160
Eureka-Arcata, CA ranks near the middle of US counties.
Eureka-Arcata, CA$61,160
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
18.7%
Children face moderate poverty.
Children under 1817.5%
Working age (18–64)19.5%
Seniors (65+)13.5%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
88.9%
speak English only
Spanish6.8%
Asian & Pacific Islander2.3%
Other Indo-European1.5%
Other languages0.4%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 80.7% of residents not counted as adherents by any reporting body.
Anchored by Humboldt State University and the timber-to-tourism economic shift, the Eureka-Arcata metro consistently posts among California's strongest margins for environmental and progressive ballot measures, driven by a younger, college-educated population relative to its rural surroundings.
The Democratic margin in Eureka-Arcata, CA peaked at thirty-four points in 1912. By 1988 the metro had flipped, voting Republican for the first time in many years. The 2024 margin was twenty-eight points, the most Democratic-leaning result in the metro's modern history.
The economic context is the key. The median household income of $61,160 sits well below state and national norms, and 19% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country.
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Eureka-Arcata, CA, California — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/cbsa/21700/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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), carried by the Democratic candidate. Out of 64,228 votes cast, 39,800 went Democratic and 21,559 went Republican.
What is Eureka-Arcata, CA, California's political archetype?
Akashic classifies Eureka-Arcata, CA, California as a "Populist" metro based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the metro has voted Democratic 18 times, Republican 19 times, and other 1 times.
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 38 presidential elections in Eureka-Arcata, CA, California from 1876 to 2024. Of those, 18 went Democratic and 19 went Republican. The metro's archetype — "Populist" — captures the overall trajectory of that voting record.