Smith County, Tennessee

Smith County
Smith County Courthouse in Carthage
Location within the U.S. state of Tennessee
Tennessee's location within the U.S.
Coordinates: 36°15′N 85°58′W / 36.25°N 85.96°W / 36.25; -85.96
Country United States
State Tennessee
Founded1799
Named afterDaniel Smith
SeatCarthage
Largest townCarthage
Area
  Total
325 sq mi (840 km2)
  Land314 sq mi (810 km2)
  Water11 sq mi (30 km2)  3.4%
Population
 (2020)
  Total
19,904
  Density61/sq mi (24/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district6th

Smith County is a county in the U.S. state of Tennessee. As of the 2020 census, the population was 19,904. Smith County is located in the region of the state known as Middle Tennessee. Its county seat is Carthage. The county was organized in 1799 and is named for Daniel Smith, a Revolutionary War veteran who made the first map of Tennessee and served as a United States senator.

Smith County is part of the Nashville-DavidsonMurfreesboroFranklin, TN Metropolitan Statistical Area.