Spokane County Flag

Spokane County

State:
Washington
County Seat:
Spokane

Spokane County's estimated 2026 population is 561,203 with a growth rate of 0.51% in the past year according to the most recent United States census data. Spokane County is the 4th largest county in Washington. The 2010 population was 472,102 and has seen a growth of 18.87% since that time.

561,203
Total Population
318
Population Density (mi²)
4
Population Rank (State)
2.9K 0.51%
Annual Population Growth

Spokane County Population

Demographics

Economics and Income Statistics