Stevens County is a county located in the U.S. state of Washington along the Canada–US border. At the 2020 census, its population was 46,445. The county seat and largest city is Colville, and the largest CDP is Suncrest. The county was created in 1863 and named after Isaac Stevens, the first governor of Washington Territory.

Stevens County is included in the Spokane-Spokane Valley, WA Metropolitan Statistical Area. Most of the Spokane Indian Reservation is within the borders of the county.

Geography

According to the United States Census Bureau, the county has a total area of , of which is land and (2.5%) is water.

Geographic features

  • Columbia River

Adjacent counties

  • Pend Oreille County – east
  • Spokane County – southeast
  • Lincoln County – southwest
  • Ferry County – west
  • Kootenay Boundary Regional District, British Columbia – north
  • Regional District of Central Kootenay, British Columbia – northeast

National protected areas

  • Pacific Northwest National Scenic Trail (part)
  • Colville National Forest (part)
  • Kaniksu National Forest (part)
  • Lake Roosevelt National Recreation Area (part)
  • Little Pend Oreille National Wildlife Refuge (part)

Demographics