Area
According to the U.S. Census Bureau, the county has a total area of 2,791 square miles (7,228.7 square kilometers), of which 2,681 square miles (6,943.8 square kilometers) is land and 110 square miles (284.9 square kilometers) (3.95%) is water.
Geographic Features
- Columbia River
- Grand Coulee
- Moses Lake
- Potholes Reservoir
Major Highways
- Interstate 90
- State Route 17
- State Route 28
- U.S. Route 2
Adjacent Counties
- Adams County, Washington - East
- Benton County, Washington - South
- Douglas County, Washington - North
- Franklin County, Washington - Southeast
- Kittitas County, Washington - West
- Lincoln County, Washington - East
- Okanogan County, Washington - Northeast
- Yakima County, Washington - Southwest
National Protected Areas
- Columbia National Wildlife Refuge (Part)
- Hanford Reach National Monument (Part)
- Lake Roosevelt National Recreation Area (Part)
- Saddle Mountain National Wildlife Refuge (Part)