Eureka is a city located in Humboldt County California. It is also the county seat of Humboldt County. With a 2020 population of 26,376, it is the 291st largest city in California and the 1744th largest city in the United States. Eureka is currently declining at a rate of -0.26% annually and its population has decreased by -2.09% since the most recent census, which recorded a population of 26,938 in 2020. Spanning over 14 miles, Eureka has a population density of 2,811 people per square mile.
The average household income in Eureka is $62,953 with a poverty rate of 19.77%. The median rental costs in recent years comes to $951 per month, and the median house value is $295,500. The median age in Eureka is 38 years, 38 years for males, and 38 years for females.
According to the most recent ACS, the racial composition of Eurekawas:
2021 and 2022 population is estimated by projecting the 2019 numbers.
Rate of Home Ownership
Average Family Size
Average Household Size
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among white people with a rate of 34.37%.
85.12% of Eureka residents speak only English, while 14.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.31% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in Eureka is Black, with 58.68% below the poverty level.
The race least likely to be in poverty in Eureka is Hispanic, with 10.33% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.99%. Among those working part-time, it was 22.17%, and for those that did not work, the poverty rate was 35.68%.
Number of Veterans
Veteran Poverty Rate
Veteran Disability Rate
Labor Force Participation
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Born in Eureka
92.40% of Eureka residents were born in the United States, with 67.20% having been born in California. 3.53% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.