Johnson County, Tennessee

Johnson County
Johnson County
County
	Johnson County Courthouse in Mountain City
	Seal
	Location within the U.S. state of Tennessee
	Tennessee's location within the U.S.
	Coordinates: 36°28′N 81°52′W / 36.46°N 81.86°W
Country	United States
State	Tennessee
Founded	1836
Named for	Thomas Johnson, early settler
Seat	Mountain City
Largest town	Mountain City
Area
• Total	303 sq mi (780 km2)
• Land	298 sq mi (770 km2)
• Water	4.2 sq mi (11 km2) 1.4%
Population (2020)
• Total	17,948
• Density	61/sq mi (24/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional district	1st

Johnson County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 17,948.^[2] Its county seat is Mountain City.^[3] It is the state's northeasternmost county, sharing borders with Virginia and North Carolina.

^ Jewell Hamm, "Johnson County," Tennessee Encyclopedia of History and Culture. Retrieved: October 18, 2013.
^ "Census - Geography Profile: Johnson County, Tennessee". United States Census Bureau. Retrieved January 7, 2023.
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.