THE YAKIMA COUNTY LAND BRIEF
Land in the
Yakima Folds setting.
Yakima County has 4,294.5 square miles of land in Washington. 7 mapped landscape regions meet across Yakima County: Yakima Folds, Yakima Plateau and Slopes, Pleistocene Lake Basins, among others.
Basalt underlies this dry plateau of grassland and sagebrush. Windblown soils cover some uplands, while ancient flood paths exposed rock across the region's scabland terrain.
Regional context: Columbia Plateau ↗ · Regional mapping across the county footprint
Where the landscape changes
Yakima County intersects 7 mapped regional units. The largest mapped shares are:
- Yakima Folds39.3%
- Yakima Plateau and Slopes20.9%
- Pleistocene Lake Basins15.8%
- Grand Fir Mixed Forest13.1%
- Western Cascades Montane Highlands5.9%
Eastern Cascades Slopes and Foothills in Yakima County
On the Cascades' drier eastern side, open pine forests mingle with volcanic cones, buttes and basins. Larger river valleys and lake basins interrupt the surrounding uplands.
Read the regional source ↗Cascades in Yakima County
Volcanic mountains, deeply cut stream valleys and glaciated high country define the Cascades. Conifer forests change with elevation, giving way to mountain meadows and rocky alpine terrain.
Read the regional source ↗Finding your parcel within Yakima County
The atlas lists 28 cities, towns, townships, and Census communities associated with Yakima County, including Yakima, Terrace Heights, Ahtanum. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Yakima County by land and water
The Census records 15.9 square miles of water within Yakima County, or 0.4% of its total area. That share is close to Yakima County’s 0.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Yakima County has 1,610.2 times the land area of nearby White Swan CDP (2.67 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Benton County, Grant County, King County, Kittitas County, Klickitat County, Lewis County, Pierce County, Skamania County within Washington. A tract near one of these lines should be matched to the county identifier on its own records.

