County · Washington · United States
Cowlitz County ZIP codes
11 ZIP codes · 11 cities · FIPS 53015
Key facts
- State
- Washington (WA)
- FIPS code
- 53015
- Population
- 111,539
- Median household income
- $72,932
- Median age
- 41.1
- Land area
- 1,141.2 sq mi (2,955.6 km²)
- Population density
- 98 / sq mi
- Area codes
- 360, 425, 564
Cities and ZIP codes in Cowlitz County (11)
| City | ZIP codes |
|---|---|
| Ariel | 98603 |
| Carrolls | 98609 |
| Castle Rock | 98611 |
| Cougar | 98616 |
| Kalama | 98625 |
| Kelso | 98626 |
| Longview | 98632 |
| Ryderwood | 98581 |
| Silverlake | 98645 |
| Toutle | 98649 |
| Woodland | 98674 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.