City · Washington · United States
Ryderwood, WA — ZIP codes
1 ZIP code · Cowlitz County
- City
- Ryderwood
- County
- Cowlitz
- State
- Washington
- Country
- United States
- Postal code
- 98581Single source
- Coordinates
- 46.3752, -123.0431 View on OpenStreetMap
- Area codes
- 360, 564 (from the nearest rate centre)
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 98581 | Ryderwood | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.