
Montgomery County
- State:
- Indiana
- County Seat:
- Crawfordsville
Montgomery County's estimated 2025 population is 39,081 with a growth rate of 0.65% in the past year according to the most recent United States census data. Montgomery County is the 39th largest county in Indiana. The 2010 population was 38,096 and has seen a growth of 2.59% since that time.