Johnson County
County in Tennessee
Johnson County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 17,948. Its county seat is Mountain City. It is the state's northeasternmost county, sharing borders with Virginia and North Carolina. Wikipedia
Cities: Mountain City and Butler
Population: 18,086 (2022)
County seat: Mountain City
Area: 303 mi²
Congressional district: 1st
Named for: Thomas Johnson, early settler