
Perry County
- State:
- Illinois
- County Seat:
- Pinckneyville
Perry County's estimated 2025 population is 20,485 with a growth rate of -0.04% in the past year according to the most recent United States census data. Perry County is the 56th largest county in Illinois. The 2010 population was 22,316 and has seen a growth of -8.2% since that time.