Saline County Flag

Saline County

State:
Illinois
County Seat:
Harrisburg

Saline County's estimated 2026 population is 22,502 with a growth rate of -0.71% in the past year according to the most recent United States census data. Saline County is the 52nd largest county in Illinois. The 2010 population was 24,900 and has seen a growth of -9.63% since that time.

22,502
Total Population
59
Population Density (mi²)
52
Population Rank (State)
-162 -0.71%
Annual Population Growth

Saline County Population

Demographics

Economics and Income Statistics