Sullivan County | |
---|---|
Coordinates: 36°31′N 82°18′W / 36.51°N 82.3°W | |
Country | United States |
State | Tennessee |
Founded | 1779 |
Named for | General John Sullivan[1] |
Seat | Blountville |
Largest city | Kingsport |
Government | |
• County Mayor | Richard Venable (R) |
Area | |
• Total | 430 sq mi (1,100 km2) |
• Land | 413 sq mi (1,070 km2) |
• Water | 16 sq mi (40 km2) 3.8% |
Population (2020) | |
• Total | 158,163 |
• Estimate (2023) | 162,135 |
• Density | 379/sq mi (146/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 1st |
Website | sullivancountytn |
Sullivan County is a county located in the U.S. state of Tennessee on its northeast border. As of the 2020 census, the population was 158,163.[2] Its county seat is Blountville.[3]
Sullivan County is part of the Kingsport–Bristol TN-VA Metropolitan Statistical Area, which is a component of the Kingsport–Johnson City–Bristol, TN-VA Combined Statistical Area, commonly known as the "Tri-Cities" region.
Sullivan is Tennessee's second-oldest county;[4] it was established in 1779 when the area was still part of North Carolina. From 1784 to 1788, it was part of the extra-legal State of Franklin.[5]