Spokane County Flag

Spokane County

State:
Washington
County Seat:
Spokane

Spokane County's estimated 2026 population is 562,325 with a growth rate of 0.57% 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 19.11% since that time.

562,325
Total Population
319
Population Density (mi²)
4
Population Rank (State)
3.2K 0.57%
Annual Population Growth

Spokane County Population

Demographics

Economics and Income Statistics