Sullivan County, Tennessee

Sullivan County
Sullivan County Courthouse in Blountville
Sullivan County Courthouse in Blountville
Map of Tennessee highlighting Sullivan County
Location within the U.S. state of Tennessee
Map of the United States highlighting Tennessee
Tennessee's location within the U.S.
Coordinates: 36°31′N 82°18′W / 36.51°N 82.3°W / 36.51; -82.3
Country United States
State Tennessee
Founded1779
Named forGeneral John Sullivan[1]
SeatBlountville
Largest cityKingsport
Government
 • County MayorRichard Venable (R)
Area
 • Total
430 sq mi (1,100 km2)
 • Land413 sq mi (1,070 km2)
 • Water16 sq mi (40 km2)  3.8%
Population
 (2020)
 • Total
158,163 Increase
 • Estimate 
(2023)
162,135 Increase
 • Density379/sq mi (146/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district1st
Websitesullivancountytn.gov

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 KingsportJohnson CityBristol, 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]

  1. ^ Blythe Semmer, "Sullivan County," Tennessee Encyclopedia of History and Culture. Retrieved: April 7, 2013.
  2. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on July 7, 2011. Retrieved December 7, 2013.
  3. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  4. ^ Sullivan County official website. Retrieved: November 6, 2013.
  5. ^ J.D. Lewis, "North Carolina Counties from 1664 to Present," 2004. Retrieved: April 7, 2013.