THE OWYHEE COUNTY LAND BRIEF
Land in the
Dissected High Lava Plateau setting.
Owyhee County has 7,668.2 square miles of land in Idaho. 8 mapped landscape regions meet across Owyhee County: Dissected High Lava Plateau, Owyhee Uplands and Canyons, Unwooded Alkaline Foothills, among others.
Lava plains, stony uplands, dry valleys and scattered ranges form the Northern Basin and Range. Sagebrush and grassland give way to juniper and other woodland in higher or rockier settings.
Regional context: Northern Basin and Range ↗ · Regional mapping across the county footprint
Where the landscape changes
Owyhee County intersects 8 mapped regional units. The largest mapped shares are:
- Dissected High Lava Plateau55.8%
- Owyhee Uplands and Canyons17.1%
- Unwooded Alkaline Foothills11.5%
- Semiarid Uplands6.4%
- Mountain Home Uplands5.1%
Snake River Plain in Owyhee County
The Snake River Plain is lower and gentler than its surrounding mountains. Alluvial valleys, sagebrush-covered plains, low hills and scattered lava fields form its principal landscape patterns.
Read the regional source ↗Finding your parcel within Owyhee County
The atlas lists 5 cities, towns, townships, and Census communities associated with Owyhee County, including Murphy, Bruneau, Homedale. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Owyhee County by land and water
The Census records 28.6 square miles of water within Owyhee County, or 0.4% of its total area. That share is close to Owyhee County’s 0.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Owyhee County has 4,774.7 times the land area of nearby Bruneau CDP (1.61 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Ada County, Canyon County, Elmore County, Twin Falls County within Idaho. A tract near one of these lines should be matched to the county identifier on its own records.

