Sumner County | |
|---|---|
Old Hickory Lake at Bledsoe Creek State Park | |
Location within the U.S. state of Tennessee | |
Tennessee's location within the U.S. | |
| Coordinates: 36°28′N 86°28′W / 36.47°N 86.46°W | |
| Country | |
| State | |
| Founded | November 1786 |
| Named for | Jethro Sumner |
| Seat | Gallatin |
| Largest city | Hendersonville |
| Area | |
| • Total | 543 sq mi (1,410 km2) |
| • Land | 529 sq mi (1,370 km2) |
| • Water | 14 sq mi (40 km2) 2.5% |
| Population (2020) | |
| • Total | 196,281 |
| • Density | 360/sq mi (140/km2) |
| Website | www |
Sumner County is a county located on the central northern border of the U.S. state of Tennessee, in what is called Middle Tennessee.
As of the 2020 census, the population was 196,281. Its county seat is Gallatin. Its largest city is Hendersonville. The county is named for American Revolutionary War hero General Jethro Sumner.