Cowlitz County, Washington Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Longview137,94337,8690.05%2,56414.8City
Kelso212,62012,731-0.22%1,5518.1City
Woodland36,4766,542-0.26%1,5754.1City
Lexington45,3073,7857.69%3,9631.3CDP
Longview Heights54,2574,3880.69%1,0234.2CDP
Kalama63,0532,9730.66%8483.6City
Beacon Hill72,4761,9037.7%2,1551.1CDP
Castle Rock82,4322,452-0.21%1,1612.1City
Ryderwood94304010.47%2,6710.2CDP
Cougar1038935.56%660.6CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Cowlitz County, Washington?

Longview is the largest city in Cowlitz County.

What is the smallest city in Cowlitz County, Washington?

Cougar is the smallest city in Cowlitz County.

How many cities are in Cowlitz County?

There are 10 cities in Cowlitz County, Washington.

Frequently Asked Questions