THE WASHOE COUNTY LAND BRIEF
Land in the
High Lava Plains setting.
Washoe County has 6,315.9 square miles of land in Nevada. 12 mapped landscape regions meet across Washoe County: High Lava Plains, Sierra Nevada-Influenced Semiarid Hills and Basins, Lahontan Salt Shrub Basin, 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
Washoe County intersects 12 mapped regional units. The largest mapped shares are:
- High Lava Plains39.6%
- Sierra Nevada-Influenced Semiarid Hills and Basins13.3%
- Lahontan Salt Shrub Basin12.6%
- Lahontan and Tonopah Playas11.4%
- Pluvial Lake Basins5.6%
Central Basin and Range in Washoe County
North-trending mountain blocks separate dry interior basins. Alluvial fans connect the ranges to valley floors, while vegetation changes from sparse basin shrubs to woodland and forest at higher elevations.
Read the regional source ↗Sierra Nevada in Washoe County
A high mountain block slopes west toward California's Central Valley and drops sharply on its eastern side. Granite landscapes, glacial basins and elevation-dependent conifer forests are prominent regional features.
Read the regional source ↗Finding your parcel within Washoe County
The atlas lists 17 cities, towns, townships, and Census communities associated with Washoe County, including Reno, Spanish Springs, Sparks. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Washoe County by land and water
The Census records 225 square miles of water within Washoe County, or 3.4% of its total area. That share is close to Washoe County’s 3.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Washoe County has 2,020.4 times the land area of nearby Gerlach CDP (3.13 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Carson City, Churchill County, Humboldt County, Lyon County, Pershing County, Storey County within Nevada. A tract near one of these lines should be matched to the county identifier on its own records.

