DeKalb County Flag

DeKalb County

State:
Indiana
County Seat:
Auburn

DeKalb County's estimated 2026 population is 44,636 with a growth rate of 0.34% in the past year according to the most recent United States census data. DeKalb County is the 35th largest county in Indiana. The 2010 population was 42,335 and has seen a growth of 5.44% since that time.

44,636
Total Population
123
Population Density (mi²)
35
Population Rank (State)
153 0.34%
Annual Population Growth

DeKalb County Population

Demographics

Economics and Income Statistics