
Wabash County
- State:
- Illinois
- County Seat:
- Mount Carmel
Wabash County's estimated 2025 population is 10,746 with a growth rate of -0.9% in the past year according to the most recent United States census data. Wabash County is the 86th largest county in Illinois. The 2010 population was 11,916 and has seen a growth of -9.82% since that time.