THE KITTITAS COUNTY LAND BRIEF
Land in the
Yakima Folds setting.
Kittitas County has 2,297.3 square miles of land in Washington. 10 mapped landscape regions meet across Kittitas County: Yakima Folds, Yakima Plateau and Slopes, Chiwaukum Hills and Lowlands, 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
Kittitas County intersects 10 mapped regional units. The largest mapped shares are:
- Yakima Folds35%
- Yakima Plateau and Slopes16.4%
- Chiwaukum Hills and Lowlands15.7%
- North Cascades Highland Forests11.4%
- Pleistocene Lake Basins8.7%
Eastern Cascades Slopes and Foothills in Kittitas 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 ↗North Cascades in Kittitas County
Rugged high mountains and glacial terrain span a strong west-to-east climate transition. Wetter maritime forests to the west contrast with drier inland conditions on the eastern side.
Read the regional source ↗Finding your parcel within Kittitas County
The atlas lists 10 cities, towns, townships, and Census communities associated with Kittitas County, including Ellensburg, Cle Elum, Roslyn. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Kittitas County by land and water
The Census records 35.7 square miles of water within Kittitas County, or 1.5% of its total area. That share is close to Kittitas County’s 1.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Kittitas County has 1,881.5 times the land area of nearby Thorp CDP (1.22 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Chelan County, Douglas County, Grant County, King County, Yakima County within Washington. A tract near one of these lines should be matched to the county identifier on its own records.

