THE WAHKIAKUM COUNTY LAND BRIEF
Land in the
Volcanics setting.
Wahkiakum County has 262.9 square miles of land in Washington. 3 mapped landscape regions meet across Wahkiakum County: Volcanics, Coastal Uplands, Willapa Hills.
Pacific-facing coastal mountains support moisture-loving conifers, with marine terraces, dunes and beaches along the ocean edge. Inland slopes and the immediate coast have different vegetation patterns.
Regional context: Coast Range ↗ · Regional mapping across the county footprint
Where the landscape changes
Wahkiakum County intersects 3 mapped regional units. The largest mapped shares are:
- Volcanics44.2%
- Coastal Uplands32.4%
- Willapa Hills23.4%
Finding your parcel within Wahkiakum County
The atlas lists 10 cities, towns, townships, and Census communities associated with Wahkiakum County, including Skamokawa Valley, Rosburg, Grays River. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Wahkiakum County by land and water
The Census records 23.8 square miles of water within Wahkiakum County, or 8.3% of its total area. That share is close to Wahkiakum County’s 8.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Wahkiakum County has 9.3 times the land area of nearby Skamokawa Valley CDP (28.2 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Cowlitz County, Lewis County, Pacific County within Washington. A tract near one of these lines should be matched to the county identifier on its own records.

