Wahkiakum County, Washington ZIP codes
3 ZIP codes are in Wahkiakum County, plus 3 that cross in from neighboring counties.
- ZIP codes
- 3
- Population in these ZIPs
- 4,289
- Avg. median income
- $59,600population-weighted
- Cities & towns
- 3
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ZIP codes in Wahkiakum County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 98612 | Cathlamet | 3,366 | $59,583 | $418,000 |
| 98643 | Rosburg | 571 | — | $237,100 |
| 98647 | Skamokawa | 352 | — | $259,200 |
ZIP codes partly in Wahkiakum County
These ZIP codes are mostly in a neighboring county but cover part of Wahkiakum County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 98621 | Grays River | Pacific County | 195 | $91,250 | — |
| 98632 | Longview | Cowlitz County | 50,635 | $66,305 | $387,000 |
| 98638 | Naselle | Pacific County | 1,443 | $63,664 | $388,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Wahkiakum County
Nearby counties
Frequently asked questions
How many ZIP codes are in Wahkiakum County, Washington?
3 ZIP codes are mainly in Wahkiakum County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Wahkiakum County?
ZIP codes in Wahkiakum County use the city names Cathlamet, Rosburg and Skamokawa.