Douglas County Flag

Douglas County

State:
Washington
County Seat:
Waterville

Douglas County's estimated 2025 population is 45,948 with a growth rate of 1.27% in the past year according to the most recent United States census data. Douglas County is the 25th largest county in Washington. The 2010 population was 38,513 and has seen a growth of 19.31% since that time.

45,948
Total Population
25
Population Density (mi²)
25
Population Rank (State)
575 1.27%
Annual Population Growth

Douglas County Population

Demographics

Economics and Income Statistics