
Klickitat County
- State:
- Washington
- County Seat:
- Goldendale
Klickitat County's estimated 2025 population is 24,161 with a growth rate of 1.2% in the past year according to the most recent United States census data. Klickitat County is the 29th largest county in Washington. The 2010 population was 20,375 and has seen a growth of 18.58% since that time.