Humboldt County Demographics

A map of Humboldt County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	93,515	93,316	69.5%	68.4%
Hispanic	19,039	18,535	14.2%	13.6%
Multiracial	10,717	10,407	8.0%	7.6%
Native American/Other	5,504	8,981	4.1%	6.6%
Asian	4,029	3,495	3.0%	2.6%
Black	1,737	1,729	1.3%	1.3%

Humboldt County, California has an estimated population of 134,541, a slight decrease from the 136,463 recorded in the 2020 Census. The population is 69.5% White, 14.2% Hispanic, 8.0% Multiracial, 4.1% Native American/Other, 3.0% Asian, and 1.3% Black. This demographic dot map shows the population of Humboldt County, with one dot drawn for each person counted by the Census, color-coded by race.

Humboldt has become less racially diverse since 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 Humboldt County, that probability was 50.3% in 2020 and 48.8% in the most recent ACS estimates.

Humboldt County is ranked the 35th most populous county in California, out of 58 counties. Humboldt County was ranked the 35th most populous county in the 2020 Census.

Humboldt County's White Population

93,515 residents of Humboldt County, or 69.5% of the population, identify as White. The share of White residents in Humboldt County is significantly higher than in California overall, where 33.8% of the population is White. Humboldt County ranks 13th statewide in terms of White residents as a share of the population, out of 58 counties.

Since the 2020 Census, Humboldt County's White population has remained roughly the same. White residents' share of Humboldt County's population has increased from 68.4% to 69.5%.

Humboldt County is more White than neighboring Del Norte County (59.9% White), and Mendocino County (61.1% White). Humboldt County is less White than neighboring Trinity County (77.4% White), Siskiyou County (73.3% White), and Josephine County (82.9% White).

Humboldt County's Black Population

1,737 residents of Humboldt County, or 1.3% of the population, identify as Black. The share of Black residents in Humboldt County is slightly lower than in California overall, where 5.2% of the population is Black. Humboldt County ranks 38th statewide in terms of Black residents as a share of the population, out of 58 counties.

Since the 2020 Census, Humboldt County's Black population has remained roughly the same. Black residents' share of Humboldt County's population has remained roughly unchanged at 1.3%.

Humboldt County is more Black than neighboring Trinity County (1.1% Black), Mendocino County (0.6% Black), and Josephine County (0.4% Black). Humboldt County is less Black than neighboring Del Norte County (2.5% Black).

Humboldt County's Asian Population

4,029 residents of Humboldt County, or 3.0% of the population, identify as Asian. The share of Asian residents in Humboldt County is considerably lower than in California overall, where 15.3% of the population is Asian. Humboldt County ranks 38th statewide in terms of Asian residents as a share of the population, out of 58 counties.

Since the 2020 Census, Humboldt County's Asian population has grown by an estimated 15.3%. Asian residents' share of Humboldt County's population has remained roughly unchanged at 3.0%.

Humboldt County is more Asian than neighboring Trinity County (0.6% Asian), Mendocino County (2.1% Asian), Siskiyou County (1.8% Asian), and Josephine County (0.8% Asian). Humboldt County is less Asian than neighboring Del Norte County (3.2% Asian).

Humboldt County's Hispanic Population

19,039 residents of Humboldt County, or 14.2% of the population, identify as Hispanic. The share of Hispanic residents in Humboldt County is significantly lower than in California overall, where 40.2% of the population is Hispanic. Humboldt County ranks 48th statewide in terms of Hispanic residents as a share of the population, out of 58 counties.

Since the 2020 Census, Humboldt County's Hispanic population has grown by an estimated 2.7%. Hispanic residents' share of Humboldt County's population has increased from 13.6% to 14.2%.

Humboldt County is more Hispanic than neighboring Trinity County (6.1% Hispanic), Siskiyou County (13.5% Hispanic), and Josephine County (8.8% Hispanic). Humboldt County is less Hispanic than neighboring Del Norte County (19.9% Hispanic), and Mendocino County (27.6% Hispanic).

Humboldt County's Native American/Other Population

5,504 residents of Humboldt County, or 4.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Humboldt County is slightly higher than in California overall, where 1.2% of the population is Native American/Other. Humboldt County ranks 4th statewide in terms of Native American/Other residents as a share of the population, out of 58 counties.

Since the 2020 Census, Humboldt County's Native American/Other population has declined by an estimated 38.7%. Native American/Other residents' share of Humboldt County's population has decreased from 6.6% to 4.1%.

Humboldt County is more Native American/Other than neighboring Mendocino County (3.3% Native American/Other), Siskiyou County (3.6% Native American/Other), and Josephine County (1.3% Native American/Other). Humboldt County is less Native American/Other than neighboring Trinity County (7.9% Native American/Other), and Del Norte County (6.9% Native American/Other).

Humboldt County's Multiracial Population

10,717 residents of Humboldt County, or 8.0% of the population, identify as Multiracial. The share of Multiracial residents in Humboldt County is slightly higher than in California overall, where 4.4% of the population is Multiracial. Humboldt County ranks 2nd statewide in terms of Multiracial residents as a share of the population, out of 58 counties.

Since the 2020 Census, Humboldt County's Multiracial population has grown by an estimated 3.0%. Multiracial residents' share of Humboldt County's population has remained roughly unchanged at 8.0%.

Humboldt County is more Multiracial than neighboring Trinity County (6.9% Multiracial), Del Norte County (7.6% Multiracial), Mendocino County (5.2% Multiracial), Siskiyou County (6.5% Multiracial), and Josephine County (5.8% 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.