Cowlitz County, Washington

Cowlitz County, Washington, had an estimated population of 114,885 in 2025 across 2,956 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Washington's counties and nationally.

Population: 114,885; 2025 estimate
Area: 2,956 km²
Density: 39; per km²
Median income: $76,531; household, ACS 2024
Median age: 41.5; years, ACS 2024

How Washington's counties spread

Amenities & Infrastructure

Indicator	Value	In Washington	In the US
Households with Broadband2024	91.0%	17 / 39	618 / 3,144
Median Gross Rent2024	$1,206	19 / 39	529 / 3,137
Median Home Value2024	$397,500	22 / 39	291 / 3,139
Owner-Occupied Homes2024	68.0%	26 / 39	2,433 / 3,144
Vacant Homes2024	5.3%	33 / 39	2,927 / 3,144

Demography

Indicator	Value	In Washington	In the US
Aged 65 and Over2024	19.8%	23 / 39	1,624 / 3,144
American Indian & Alaska Native2024	0.8%	18 / 39	539 / 3,144
Asian, non-Hispanic2024	1.2%	24 / 39	875 / 3,144
Average Household Size2024people	2.5	12 / 39	930 / 3,144
Black, non-Hispanic2024	0.6%	26 / 39	2,332 / 3,144
Foreign-Born2024	4.3%	31 / 39	1,122 / 3,144
Hispanic or Latino2024	10.5%	21 / 39	841 / 3,144
Median Age2024years	41.5	21 / 39	1,565 / 3,144
Sex Ratio2024per 1,000 males	1,004	11 / 39	1,451 / 3,144
Speak a Language Other Than English2024	7.9%	25 / 39	1,148 / 3,144
Under 182024	22.5%	10 / 39	1,261 / 3,144
Veterans2024	10.3%	19 / 39	312 / 3,144
White, non-Hispanic2024	79.6%	14 / 39	1,614 / 3,144

Economy

Indicator	Value	In Washington	In the US
Below Poverty Line2024	12.2%	17 / 39	1,806 / 3,144
Households on SNAP2024	17.7%	8 / 39	593 / 3,144
Income Inequality2024index	0.425	31 / 39	2,311 / 3,144
Median Household Income2024	$76,531	18 / 39	746 / 3,143
Per Capita Income2024	$38,105	26 / 39	1,081 / 3,144
Unemployment Rate2024	5.9%	13 / 39	660 / 3,144

Education

Indicator	Value	In Washington	In the US
Bachelor's Degree or Higher2024	17.6%	37 / 39	2,334 / 3,144
High School or Higher2024	89.9%	27 / 39	1,638 / 3,144

Health Coverage

Indicator	Value	In Washington	In the US
No Health Insurance2024	6.2%	19 / 39	2,069 / 3,144
With a Disability2024	20.2%	9 / 39	584 / 3,144

Population & Density

Indicator	Value	In Washington	In the US
Population2025	114,885	12 / 39	560 / 3,144
Population Density2025/km²	39	12 / 39	894 / 3,144

Work & Commute

Indicator	Value	In Washington	In the US
Commute by Public Transit2024	0.4%	32 / 39	924 / 3,144
Households with No Vehicle2024	6.2%	7 / 39	1,130 / 3,144
Mean Commute Time2024minutes	26.1	16 / 39	1,108 / 3,143
Work from Home2024	8.2%	36 / 39	1,693 / 3,144

Other counties of Washington

Compare Cowlitz County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.