DeKalb County Flag

DeKalb County

State:
Missouri
County Seat:
Maysville

DeKalb County's estimated 2026 population is 9,708 with a growth rate of -0.89% in the past year according to the most recent United States census data. DeKalb County is the 88th largest county in Missouri. The 2010 population was 12,899 and has seen a growth of -24.74% since that time.

9,708
Total Population
23
Population Density (mi²)
88
Population Rank (State)
-87 -0.89%
Annual Population Growth

DeKalb County Population

Demographics

Economics and Income Statistics