Eureka, CA Demographics

A map of Eureka's Population by Race

Eureka, California has an estimated population of 26,010, a slight decrease from the 26,512 recorded in the 2020 Census. The population is 64.1% White, 15.9% Hispanic, 9.3% Multiracial, 5.5% Asian, 3.2% Native American/Other, and 2.0% Black. This demographic dot map shows the population of Eureka, with one dot drawn for each person counted by the Census, color-coded by race.

Eureka is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Eureka, that probability was 55.0% in 2020 and 55.0% in the most recent ACS estimates.

Eureka is ranked the 293rd most populous place in California, out of 1,618 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Eureka was ranked the 288th most populous place in the 2020 Census.

Eureka's White Population

16,680 residents of Eureka, or 64.1% of the population, identify as White. The share of White residents in Eureka is significantly higher than in California overall, where 33.8% of the population is White. Eureka ranks 686th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Eureka's White population has declined by an estimated 2.3%. White residents' share of Eureka's population has remained roughly unchanged at 64.1%.

Eureka is more White than neighboring Bayview CDP (Humboldt County) (63.4% White). Eureka is less White than neighboring Myrtletown (72.7% White), Cutten (81.2% White), Samoa (68.9% White), and Fairhaven (82.3% White).

Eureka's Black Population

516 residents of Eureka, or 2.0% of the population, identify as Black. The share of Black residents in Eureka is slightly lower than in California overall, where 5.2% of the population is Black. Eureka ranks 453rd statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Eureka's Black population has grown by an estimated 2.0%. Black residents' share of Eureka's population has remained roughly unchanged at 2.0%.

Eureka is more Black than neighboring Myrtletown (1.1% Black), Cutten (0.6% Black), Bayview CDP (Humboldt County) (0% Black), Samoa (0% Black), and Fairhaven (0% Black).

Eureka's Asian Population

1,432 residents of Eureka, or 5.5% of the population, identify as Asian. The share of Asian residents in Eureka is lower than in California overall, where 15.3% of the population is Asian. Eureka ranks 450th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Eureka's Asian population has declined by an estimated 2.4%. Asian residents' share of Eureka's population has remained roughly unchanged at 5.5%.

Eureka is more Asian than neighboring Myrtletown (4.7% Asian), Cutten (4.3% Asian), Samoa (0% Asian), and Fairhaven (0% Asian). Eureka is less Asian than neighboring Bayview CDP (Humboldt County) (19.6% Asian).

Eureka's Hispanic Population

4,126 residents of Eureka, or 15.9% of the population, identify as Hispanic. The share of Hispanic residents in Eureka is significantly lower than in California overall, where 40.2% of the population is Hispanic. Eureka ranks 1033rd statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Eureka's Hispanic population has grown by an estimated 2.8%. Hispanic residents' share of Eureka's population has increased from 15.1% to 15.9%.

Eureka is more Hispanic than neighboring Myrtletown (11.6% Hispanic), Cutten (7.5% Hispanic), Bayview CDP (Humboldt County) (9.6% Hispanic), and Fairhaven (2% Hispanic). Eureka is less Hispanic than neighboring Samoa (30.5% Hispanic).

Eureka's Native American/Other Population

843 residents of Eureka, or 3.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Eureka is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Eureka ranks 109th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Eureka's Native American/Other population has declined by an estimated 36.8%. Native American/Other residents' share of Eureka's population has decreased from 5.0% to 3.2%.

Eureka is more Native American/Other than neighboring Myrtletown (0.6% Native American/Other), Bayview CDP (Humboldt County) (2.6% Native American/Other), Samoa (0.7% Native American/Other), and Fairhaven (1.7% Native American/Other).

Eureka's Multiracial Population

2,413 residents of Eureka, or 9.3% of the population, identify as Multiracial. The share of Multiracial residents in Eureka is slightly higher than in California overall, where 4.4% of the population is Multiracial. Eureka ranks 129th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Eureka's Multiracial population has grown by an estimated 13.7%. Multiracial residents' share of Eureka's population has increased from 8.0% to 9.3%.

Eureka is more Multiracial than neighboring Cutten (3.4% Multiracial), Bayview CDP (Humboldt County) (5% Multiracial), and Samoa (0% Multiracial). Eureka is less Multiracial than neighboring Myrtletown (9.4% Multiracial), and Fairhaven (14% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.