Macon County Flag

Macon County

State:
Illinois
County Seat:
Decatur

Macon County's estimated 2026 population is 100,703 with a growth rate of -0.02% in the past year according to the most recent United States census data. Macon County is the 20th largest county in Illinois. The 2010 population was 110,786 and has seen a growth of -9.1% since that time.

100,703
Total Population
173
Population Density (mi²)
20
Population Rank (State)
-17 -0.02%
Annual Population Growth

Macon County Population

Demographics

Economics and Income Statistics