Dallas County Flag

Dallas County

State:
Missouri
County Seat:
Buffalo

Dallas County's estimated 2026 population is 18,045 with a growth rate of 0.47% in the past year according to the most recent United States census data. Dallas County is the 61st largest county in Missouri. The 2010 population was 16,723 and has seen a growth of 7.91% since that time.

18,045
Total Population
33
Population Density (mi²)
61
Population Rank (State)
84 0.47%
Annual Population Growth

Dallas County Population

Demographics

Economics and Income Statistics