Humboldt County, CA Demographics
Humboldt County, CA is the 35th most populous of 58 counties in California, with 136,463 residents across 3,568 square miles. That is about 38 people per square mile.
At the 2020 census
| Population | 136,463 |
|---|---|
| Land area | 3,568 sq mi |
| Density | 38 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Humboldt County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Humboldt County, CA
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Humboldt County, CA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Humboldt County, CA
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 2 | 6,020 | 1.2 | 5,070 |
| Census Tract 105.02 | 5,577 | 11.2 | 496 |
| Census Tract 3 | 5,520 | 1.2 | 4,639 |
| Census Tract 7 | 5,496 | 2.4 | 2,287 |
| Census Tract 9 | 5,149 | 24.8 | 207 |
| Census Tract 12 | 5,141 | 251.8 | 20 |
| Census Tract 11.02 | 5,124 | 2.8 | 1,808 |
| Census Tract 6 | 4,977 | 1.3 | 3,879 |
| Census Tract 108 | 4,910 | 39.5 | 124 |
| Census Tract 8 | 4,868 | 6.0 | 809 |
| Census Tract 1 | 4,752 | 1.5 | 3,200 |
| Census Tract 109.01 | 4,725 | 2.7 | 1,719 |
| Census Tract 111 | 4,724 | 116.3 | 41 |
| Census Tract 110 | 4,625 | 2.8 | 1,673 |
| Census Tract 107.01 | 4,341 | 7.0 | 624 |
| Census Tract 4 | 4,100 | 2.7 | 1,513 |
| Census Tract 109.02 | 4,074 | 404.9 | 10 |
| Census Tract 105.03 | 3,858 | 1.4 | 2,855 |
| Census Tract 116 | 3,822 | 393.0 | 10 |
| Census Tract 104 | 3,814 | 14.1 | 271 |
| Census Tract 5 | 3,626 | 0.9 | 3,897 |
| Census Tract 103 | 3,496 | 250.4 | 14 |
| Census Tract 105.04 | 3,438 | 2.4 | 1,453 |
| Census Tract 10.02 | 3,285 | 1.3 | 2,529 |
| Census Tract 112 | 3,275 | 384.2 | 9 |
| Census Tract 9400 | 3,173 | 140.7 | 23 |
| Census Tract 102 | 2,921 | 240.6 | 12 |
| Census Tract 101.02 | 2,914 | 782.4 | 4 |
| Census Tract 10.01 | 2,865 | 0.8 | 3,518 |
| Census Tract 107.02 | 2,570 | 36.2 | 71 |
| Census Tract 115.01 | 2,474 | 123.2 | 20 |
| Census Tract 11.03 | 1,889 | 0.9 | 2,133 |
| Census Tract 106 | 1,849 | 81.4 | 23 |
| Census Tract 115.02 | 1,638 | 218.0 | 8 |
| Census Tract 13 | 1,433 | 16.0 | 90 |
Related places
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Metro areas containing Humboldt County
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.