Spokane County
Also known as Spokane County, Washington, Spokane County, WA
county in Washington, United States
Key facts
- Country
- United States
- State
- Washington
- Founded
- January 29, 1858 (created), January 19, 1864 (annexed to Stevens Co.), October 30, 1879 (separated from Stevens Co.)
- Named after
- Spokane people
- Seat
- Spokane
- Largest city
- Spokane
- Sheriff
- John Nowels
- Total
- 1,780.984 sq mi (4,612.73 km )
- Land
- 1,764.224 sq mi (4,569.32 km )
- Water
- 16.760 sq mi (43.41 km ) 0.94%
- Estimate 2025
- 558,344
- Density
- 316/sq mi (122/km )
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Article
Spokane County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 539,339, and was estimated to be 555,947 in 2024, making it the fourth-most populous county in Washington. The county seat and largest city is Spokane, the second largest city in the state after Seattle. The county is named after the Spokane people.
Spokane County is part of the Spokane metropolitan area, which is also part of the greater Spokane–Coeur d'Alene combined statistical area that includes nearby Kootenai County, Idaho.