
Putnam County
- State:
- Tennessee
- County Seat:
- Cookeville
Putnam County's estimated 2025 population is 86,592 with a growth rate of 1.61% in the past year according to the most recent United States census data. Putnam County is the 17th largest county in Tennessee. The 2010 population was 72,552 and has seen a growth of 19.35% since that time.