
Jasper County
- State:
- Indiana
- County Seat:
- Rensselaer
Jasper County's estimated 2025 population is 33,915 with a growth rate of 0.56% in the past year according to the most recent United States census data. Jasper County is the 49th largest county in Indiana. The 2010 population was 33,497 and has seen a growth of 1.25% since that time.