Union County, Tennessee

Union County
Union County Courthouse in Maynardville
Union County Courthouse in Maynardville
Flag of Union County
Official logo of Union County
Map of Tennessee highlighting Union 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°17′N 83°50′W / 36.28°N 83.84°W / 36.28; -83.84
Country United States
State Tennessee
FoundedJanuary 23, 1856
Named forEither its creation from parts of five other counties or its support for the Union during the Civil War[1]
SeatMaynardville
Largest cityMaynardville
Government
 • MayorJason Bailey
Area
 • Total247 sq mi (640 km2)
 • Land224 sq mi (580 km2)
 • Water24 sq mi (60 km2)  9.5%
Population
 (2020)
 • Total19,802 Increase
 • Density85/sq mi (33/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
ZIP Codes
37721, 37779, 37807, 37866, 37705
Area code865
Congressional district3rd
Websitewww.unioncountytn.com

Union County is a county located in the U.S. state of Tennessee. As of the 2020 census, its population was 19,802.[2] Its county seat is Maynardville.[3] Union County is included in the Knoxville metropolitan statistical area.

  1. ^ Bonnie Heiskell Peters, "Union County," Tennessee Encyclopedia of History and Culture. Retrieved: April 19, 2013.
  2. ^ "Census - Geography Profile: Union County, Tennessee". United States Census Bureau. Retrieved January 7, 2023.
  3. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.

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