Boone County, Indiana
| Boone County | |
|---|---|
| Boone County Courthouse in Lebanon | |
| Location within the U.S. state of Indiana | |
| Indiana's location within the U.S. | |
| Coordinates: 40°03′N 86°28′W / 40.05°N 86.47°W | |
| Country | United States | 
| State | Indiana | 
| Founded | April 1, 1830 (created) 1831 (organized) | 
| Named after | Daniel Boone | 
| Seat | Lebanon | 
| Largest city | Zionsville | 
| Area | |
|  • Total | 423.25 sq mi (1,096.2 km2) | 
| • Land | 422.91 sq mi (1,095.3 km2) | 
| • Water | 0.34 sq mi (0.9 km2) 0.08% | 
| Population  (2020) | |
|  • Total | 70,812 | 
|  • Estimate  (2024) | 78,773 | 
| • Density | 170/sq mi (65/km2) | 
| Congressional districts | 4th, 5th | 
| Website | boonecounty | 
| Indiana county number 6 | |
Boone County is a county in the U.S. state of Indiana. As of 2020, the population was 70,812. The county seat is Lebanon.