Humboldt County, California: Industrial Catholic Metro county. In 2024, voted D+28%. Republican peak: R+55 in 1904.
Key facts
- 2024 presidential margin
- D+28MIT Election Lab
- Political typology
- Industrial Catholic MetroAkashic 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
- Most similar
- Benton County, OR · similarity 0.98
2024 results by precinct
2024 precinct map of Humboldt CountyPrecinct-level 2024 presidential results for Humboldt County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | −18.4% |
| 1880 | −23.8% |
| 1884 | −18.1% |
| 1888 | −15.3% |
| 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
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
2024 ACS
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%
African American
1.3%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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.
2024 ACS
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.
2024 ACS
Median household income
Inflation-adjusted dollars
$61,160
Humboldt County ranks near the middle of US counties.
Humboldt County$61,160
California$99,122
United States$80,734
Humboldt County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
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.
2024 ACS
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.
2020 religion census
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.
Humboldt's D+28 presidential margin coexists with a long history of tension between environmentalists and the extractive industries — logging and fishing — that once defined the regional economy.
Its margins are typically close. The Democratic margin reached thirty-four points in 1912; the Republican margin reached fifty-five points in 1904. Between 2020 and 2024 the county moved five points toward the Republican candidate; the 2024 margin was twenty-eight points.
Its demographics sit near national norms: a 72% non-Hispanic-white share, a median household income of $61,160, and a 19% poverty rate. The county's voting pattern over the last decade is most similar to that of Benton County and Jefferson County.
Most similar counties
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.
Humboldt County, California. Akashic. https://akashic.app/county/06023/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in California
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Frequently asked questions
How did Humboldt County, California vote in 2024?
In 2024, Humboldt County, 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 Humboldt County, California's political typology?
Akashic places Humboldt County, California in the "Industrial Catholic Metro" typology — Mid-size industrial metros with Catholic ethnic roots — among the most competitive, swing-prone ground in the country. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 18 times, Republican 19 times, and other 1 times.
When did Humboldt County, California last vote Republican?
The most recent presidential election in which Humboldt County, California voted Republican was 1984.
How many people live in Humboldt County, California?
Humboldt County, 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 Humboldt County, California?
Median household income in Humboldt County, California is $61,160 — below the national median of $80,734. The California state median is $99,122.
What is the political history of Humboldt County, California?
Akashic tracks 38 presidential elections in Humboldt County, California from 1876 to 2024. Of those, 18 went Democratic and 19 went Republican. The county's typology — "Industrial Catholic Metro" — captures where that record, its demographics, and its recent swing place it among American communities.