Humboldt County Flag

Humboldt County

State:
California
County Seat:
Eureka

Humboldt County's estimated 2026 population is 130,970 with a growth rate of -0.51% in the past year according to the most recent United States census data. Humboldt County is the 35th largest county in California. The 2010 population was 135,010 and has seen a growth of -2.99% since that time.

130,970
Total Population
37
Population Density (mi²)
35
Population Rank (State)
-677 -0.51%
Annual Population Growth

Humboldt County Population

Demographics

Economics and Income Statistics