Umatilla County Flag

Umatilla County

State:
Oregon
County Seat:
Pendleton

Umatilla County's estimated 2025 population is 79,637 with a growth rate of -0.26% in the past year according to the most recent United States census data. Umatilla County is the 14th largest county in Oregon. The 2010 population was 76,093 and has seen a growth of 4.66% since that time.

79,637
Total Population
25
Population Density (mi²)
14
Population Rank (State)
-208 -0.26%
Annual Population Growth

Umatilla County Population

Demographics

Economics and Income Statistics