
Dearborn County
- State:
- Indiana
- County Seat:
- Lawrenceburg
Dearborn County's estimated 2025 population is 51,845 with a growth rate of 0.61% in the past year according to the most recent United States census data. Dearborn County is the 28th largest county in Indiana. The 2010 population was 50,082 and has seen a growth of 3.52% since that time.