Eureka, California: Bellwether market. In 2024, voted D+22%. Republican peak: R+53 in 1904.
Key facts
- 2024 presidential margin
- D+22MIT Election Lab
- Political archetype
- BellwetherAkashic typology
- Population
- 161,6482024 5-year
- Median household income
- $62,1492024 5-year
- White (non-Hispanic)
- 70.8%2024 5-year
- Black
- 1.8%2024 5-year
- Hispanic / Latino
- 15.2%2024 5-year
- Peak Democratic margin
- D+34 in 1912MIT Election Lab
- Peak Republican margin
- R+53 in 1904MIT Election Lab
Constituent county margins for Eureka, 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 | 44,066 | 27,558 | 74,792 | ||
| D | 49,445 | 28,231 | 80,877 | ||
| D | 36,685 | 23,507 | 69,572 | ||
| D | 38,248 | 23,439 | 66,456 | ||
| D | 44,015 | 26,680 | 73,499 | ||
| D | 41,880 | 31,070 | 75,307 | ||
| D | 27,968 | 27,745 | 64,266 | ||
| D | 28,280 | 23,473 | 64,646 | ||
| D | 32,493 | 21,382 | 69,374 | ||
| D | 33,368 | 25,174 | 59,614 | ||
| R | 27,913 | 31,828 | 60,732 | ||
| R | 19,451 | 28,063 | 55,679 | ||
| D | 26,289 | 20,515 | 48,850 | ||
| R | 23,288 | 25,272 | 51,411 | ||
| R | 18,712 | 19,106 | 41,382 | ||
| D | 29,167 | 14,984 | 44,226 | ||
| D | 23,616 | 21,098 | 44,985 | ||
| R | 19,577 | 21,937 | 41,664 | ||
| R | 14,068 | 21,670 | 36,071 | ||
| R | 12,440 | 12,520 | 26,106 | ||
| D | 12,901 | 10,138 | 23,090 | ||
| D | 13,363 | 10,703 | 24,326 | ||
| D | 13,201 | 7,661 | 21,099 | ||
| D | 10,042 | 7,432 | 18,154 | ||
| R | 4,325 | 9,933 | 14,515 | ||
| R | 967 | 7,297 | 12,917 | ||
| R | 2,057 | 7,124 | 10,292 | ||
| R | 4,574 | 6,285 | 12,452 | ||
| O | 3,210 | 0 | 9,395 | ||
| R | 1,408 | 4,671 | 7,251 | ||
| R | 1,436 | 5,359 | 7,446 | ||
| R | 1,989 | 4,236 | 6,529 | ||
| R | 2,799 | 3,487 | 6,372 | ||
| R | 2,183 | 2,651 | 6,069 | ||
| R | 2,308 | 3,016 | 5,533 | ||
| R | 1,744 | 2,494 | 4,675 | ||
| R | 1,032 | 1,683 | 3,443 | ||
| R | 1,355 | 1,823 | 3,179 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
13.6%
English
12.8%
Irish
11.6%
Italian
5.1%
Scottish
3.3%
American
2.8%
French
2.7%
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
$62,149
Eureka ranks near the middle of US counties.
Eureka$62,149
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
17.7%
Children face moderate poverty.
Children under 1817.0%
Working age (18–64)18.3%
Seniors (65+)13.5%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
88.6%
speak English only
Spanish7.1%
Asian & Pacific Islander2.3%
Other Indo-European1.3%
Other languages0.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 81.6% of residents not counted as adherents by any reporting body.
Eureka in the Pacific Coast has, for decades, voted very close to the way the country has voted. Its margins are typically narrow, and the candidate who carries Eureka more often than not also wins the national popular vote.
The Democratic margin in Eureka has rarely exceeded thirty-four points in modern history; the Republican margin has rarely exceeded fifty-three points. 2024 delivered the market to the Democratic candidate by twenty-two points.
Its demographics resemble the country more than they resemble most markets. A 71% non-Hispanic-white share, a 18% poverty rate, and a median household income of $62,149 — all within the broad national range.
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, California. Akashic. https://akashic.app/dma/802/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Eureka, California vote in 2024?
In 2024, Eureka, California voted Democratic by 22.1 points (D+22), carried by the Democratic candidate. Out of 74,792 votes cast, 44,066 went Democratic and 27,558 went Republican.
What is Eureka, California's political archetype?
Akashic classifies Eureka, California as a "Bellwether" market based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the market has voted Democratic 17 times, Republican 20 times, and other 1 times.
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 38 presidential elections in Eureka, California from 1876 to 2024. Of those, 17 went Democratic and 20 went Republican. The market's archetype — "Bellwether" — captures the overall trajectory of that voting record.