Cowlitz County, WA Zip Codes
11 zip codes across 10 cities in Cowlitz County, WA
About Cowlitz County
Cowlitz County, Washington (WA) contains 11 unique zip codes spanning 10 cities and communities. Each zip code covers a different area within the county, with varying demographics, income levels, and housing markets.
Browse the complete list below to find detailed population, income, home values, cost of living, and climate data for any zip code in Cowlitz County.
Cities in Cowlitz County
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All Zip Codes in Cowlitz County, WA
| Zip Code | City |
|---|---|
| 98581 | Ryderwood |
| 98603 | Ariel |
| 98611 | Castle Rock |
| 98616 | Cougar |
| 98625 | Kalama |
| 98626 | Kelso |
| 98632 | Longview |
| 98645 | Toutle |
| 98649 | Toutle |
| 98674 | Woodland |
| 986XX | Zcta 986xx |
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Frequently Asked Questions
How many zip codes are in Cowlitz County, WA?
Cowlitz County, WA has 11 zip codes across 10 cities.
What cities are in Cowlitz County?
Cities in Cowlitz County include Ariel, Castle Rock, Cougar, Kalama, Kelso, Longview, Ryderwood, Toutle, Woodland, Zcta 986xx.
What state is Cowlitz County in?
Cowlitz County is located in Washington (WA).
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.