Stevens County is a county located in the U.S. state of Washington. As of the 2010 census, its population was 43,531. The county seat and largest city is Colville. The county was created in 1863 and named after Isaac Stevens, the first governor of Washington Territory.
According to the U.S. Census Bureau, the county has a total area of 2,541 square miles (6,580 km2), of which 2,478 square miles (6,420 km2) is land and 63 square miles (160 km2) (2.5%) is water.
- Pend Oreille County, Washington - east
- Spokane County, Washington - southeast
- Lincoln County, Washington - southwest
- Ferry County, Washington - west
- Kootenay Boundary Regional District, British Columbia - northeast
- Regional District of Central Kootenay, British Columbia - north