Eureka

County:: Humboldt County
County Seat:: Yes
Area (mi²):: 9.567
State:: California

Eureka is a city located in Humboldt County, California. Eureka has a 2025 population of 25,226. It is also the county seat of Humboldt County. Eureka is currently declining at a rate of -1% annually and its population has decreased by -4.79% since the most recent census, which recorded a population of 26,496 in 2020.

The average household income in Eureka is $87,772 with a poverty rate of 17.55%. The median age in Eureka is 38.9 years: 39.1 years for males, and 38.7 years for females.

Demographics

The racial composition of Eureka includes 70.3% White, 6.35% other race, 5.74% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	18,489	70.3%
Two or more races	3,395	12.91%
Other race	1,669	6.35%
Asian	1,510	5.74%
Black or African American	608	2.31%
Native American	455	1.73%
Native Hawaiian or Pacific Islander	176	0.67%

Eureka Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Eureka's average per capita income is $40,340. Household income levels show a median of $60,253. The poverty rate stands at 17.55%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$106,657	-
Families	$85,735	$115,167
Households	$60,253	$87,772
Non Families	$37,772	$56,303

$40,340

Average Income

$60,253

Median Household Income

17.55%

Poverty Rate