Humboldt County, California
Located in California, Humboldt County has a population of 134,541 residents and a median age of 39.9 years, making it the #491 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 18.7%. The median home value is $446,900, and the median household income is $61,160, which is 19% below the national median.
Demographics
Humboldt County has a population of 134,541, making it the #491 most populous county in the US. The median age is 39.9 years, which is 2.6% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Humboldt County is $61,160, ranking #1,970 out of 3,222 counties — 18.6% below the national median. The poverty rate is 18.7% and unemployment stands at 9.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Humboldt County is $446,900 (+58.5% vs national). Renters pay a median of $1,287/mo and the homeownership rate is 56.5%.
Median Home Value Trend
Rankings →Household Type
Education
In Humboldt County, 33.1% of adults age 25+ hold a bachelor's degree or higher, which is 1.7% below the national average, ranking #565 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Humboldt County is 75.8 years. 19.6% of adults report poor or fair health and 7.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.3% of adults in Humboldt County smoke , 33.1% are obese , and 22.1% report excessive drinking. The drug overdose death rate is 47.0 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Humboldt County is 7.8 per 100,000 and the suicide rate is 22.3 per 100,000. Motor vehicle deaths occur at a rate of 18.6 per 100,000.
Homicide Rate Trend
Families & Children
18.5% of children in Humboldt County live in poverty and the infant mortality rate is 4.9 per 1,000 live births. The teen birth rate is 10.2 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Humboldt County is 64.4%. The mean commute time is 20.6 min, which is 25.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Humboldt County voted Democratic with a margin of 28.4%. The vote was 62% Dem / 33.6% Rep. Compared to 2020, the margin shifted 5.0 toward Republicans .
Vote Share Over Time
About Humboldt County, California
Humboldt County, California has a total population of 134,541, making it the 491st most populous county in the United States. The median age in Humboldt County is 39.9 years, which is 2.6% above the national median of 38.9 years.
The median household income in Humboldt County is $61,160, which ranks #1,970 of 3,222 counties nationwide. This is 18.6% below the national median of $75,149. The poverty rate is 18.7%, higher than the national rate of 12.6%. The unemployment rate stands at 9.0%.
The median home value in Humboldt County is $446,900, 58.5% above the national median. Renters in Humboldt County pay a median gross rent of $1,287 per month. The homeownership rate is 56.5%, compared to the national rate of 64.4%.
In Humboldt County, 33.1% of residents aged 25 and older hold a bachelor's degree or higher, 1.7% below the national average of 33.7%. Health insurance coverage stands at 95.1% of the population. The average commute time for workers is 20.6 min.
Humboldt County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 69.5% of the population, followed by Hispanic or Latino (14.2%) and Two or More Races (8.0%).
All data for Humboldt County, California comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.