Cowlitz County, WA Demographics
Cowlitz County, WA is the 12th most populous of 39 counties in Washington, with 110,730 residents across 1,141 square miles. That is about 97 people per square mile.
At the 2020 census
| Population | 110,730 |
|---|---|
| Land area | 1,141 sq mi |
| Density | 97 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Cowlitz 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: Cowlitz County, WA
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Cowlitz County, WA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Cowlitz County, WA
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 11 | 6,254 | 2.6 | 2,452 |
| Census Tract 15.03 | 6,105 | 14.5 | 421 |
| Census Tract 17 | 5,857 | 152.0 | 39 |
| Census Tract 19 | 5,278 | 113.3 | 47 |
| Census Tract 5.02 | 4,912 | 0.5 | 9,204 |
| Census Tract 20.03 | 4,871 | 24.3 | 200 |
| Census Tract 12 | 4,571 | 7.6 | 602 |
| Census Tract 16.01 | 4,387 | 13.0 | 337 |
| Census Tract 7.05 | 4,039 | 1.2 | 3,301 |
| Census Tract 4 | 3,996 | 0.9 | 4,573 |
| Census Tract 21 | 3,899 | 1.3 | 2,916 |
| Census Tract 6.01 | 3,871 | 0.5 | 7,945 |
| Census Tract 13 | 3,856 | 4.0 | 966 |
| Census Tract 9.02 | 3,848 | 3.7 | 1,028 |
| Census Tract 9.01 | 3,834 | 1.3 | 2,864 |
| Census Tract 20.01 | 3,738 | 88.1 | 42 |
| Census Tract 8.02 | 3,608 | 4.2 | 851 |
| Census Tract 15.01 | 3,541 | 156.2 | 23 |
| Census Tract 8.01 | 3,536 | 1.8 | 1,956 |
| Census Tract 15.04 | 3,492 | 13.2 | 264 |
| Census Tract 7.06 | 3,305 | 1.3 | 2,475 |
| Census Tract 7.02 | 3,160 | 1.2 | 2,746 |
| Census Tract 6.02 | 3,144 | 0.9 | 3,614 |
| Census Tract 5.01 | 2,902 | 0.4 | 6,800 |
| Census Tract 16.02 | 2,884 | 28.7 | 101 |
| Census Tract 18 | 2,144 | 443.7 | 5 |
| Census Tract 20.04 | 2,094 | 48.6 | 43 |
| Census Tract 7.03 | 1,697 | 1.9 | 877 |
| Census Tract 10 | 1,336 | 0.3 | 4,734 |
| Census Tract 9800 | 571 | 9.8 | 58 |
Related places
Other counties nearby
Nearest counties
Metro areas containing Cowlitz 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.