Randolph County Flag

Randolph County

State:
Illinois
County Seat:
Chester

Randolph County's estimated 2026 population is 29,723 with a growth rate of -0.3% in the past year according to the most recent United States census data. Randolph County is the 47th largest county in Illinois. The 2010 population was 33,410 and has seen a growth of -11.04% since that time.

29,723
Total Population
52
Population Density (mi²)
47
Population Rank (State)
-90 -0.3%
Annual Population Growth

Randolph County Population

Demographics

Economics and Income Statistics