Eureka Flag

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 2026 population of 24,882. It is also the county seat of Humboldt County. Eureka is currently declining at a rate of -1.05% annually and its population has decreased by -6% since the most recent census, which recorded a population of 26,471 in 2020.

The median household income in Eureka is $57,662 with a poverty rate of 18.1%. The median age in Eureka is 39.1 years: 39.1 years for males, and 39 years for females. For every 100 females there are 100.9 males.

24.9K
Total Population
2,601
Density (mi²)
-265 -1.05%
Growth

Eureka Population

Eureka Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202624,882-265-1.05%
202525,147-265-1.04%
202425,412-323-1.26%
202325,735-337-1.29%
202226,072-266-1.01%
202126,338-133-0.5%
202026,471-68-0.26%
201926,833-176-0.65%
201827,009-113-0.42%
201727,12200%
201627,1221880.7%
201526,934490.18%
201426,88530.01%
201326,882-54-0.2%
201226,936-195-0.72%
201127,131-70-0.26%
201027,201100.04%
200026,128-897-3.32%
199027,0252,87211.89%
198024,153-184-0.76%
197024,337-3,800-13.51%
196028,1375,07922.03%
195023,0586,00335.2%
194017,0551,3038.27%
193015,7522,82921.89%
192012,9231,0789.1%
191011,8454,51861.66%
19007,3272,46950.82%
18904,8582,21984.08%
18802,6392,5844698.18%
18505500%

Median Age

Overall: 39.1 years
Female: 39 years
Male: 39.1 years

Eureka Adults

There are 21,000 adults, (4,340 of whom are seniors) in Eureka.

Sex Ratio

Female: 12,949 (49.8%)
Male: 13,061 (50.2%)

Demographics

The racial composition of Eureka includes 68.23% White, 5.99% other race, 5.57% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White17,74668.23%
Two or more races3,76114.46%
Other race1,5585.99%
Asian1,4485.57%
Black or African American7302.81%
Native American5312.04%
Native Hawaiian or Pacific Islander2360.91%
Race
Population ↓
Percentage (of total)
Other race1,3765.29%
Two or more races1,3485.18%
White1,0664.1%
Black or African American2140.82%
Native American850.33%
Native Hawaiian or Pacific Islander210.08%
Asian160.06%
Race
Population ↓
Percentage (of total)
White16,68064.13%
Two or more races2,4139.28%
Asian1,4325.51%
Black or African American5161.98%
Native American4461.71%
Native Hawaiian or Pacific Islander2150.83%
Other race1820.7%

Eureka Marital Status

Economics and Income Statistics

Eureka 's average per capita income is $39,487. Household income levels show a median of $57,662. The poverty rate stands at 18.1%.

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$91,953-
Families$81,905$113,343
Households$57,662$86,215
Non Families$38,376$54,233

$39,487

Average Income

$57,662

Median Household Income

18.1%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)