
Forrest County
- State:
- Mississippi
- County Seat:
- Hattiesburg
Forrest County's estimated 2025 population is 78,672 with a growth rate of 0.3% in the past year according to the most recent United States census data. Forrest County is the 8th largest county in Mississippi. The 2010 population was 74,944 and has seen a growth of 4.97% since that time.