Knox County, Tennessee

Knox County
Knox County Courthouse
Flag of Knox County
Official seal of Knox County
Map of Tennessee highlighting Knox County
Location within the U.S. state of Tennessee
Map of the United States highlighting Tennessee
Tennessee's location within the U.S.
Coordinates: 35°59′N 83°56′W / 35.99°N 83.94°W / 35.99; -83.94
Country United States
State Tennessee
FoundedJune 15, 1792[1]
Named forHenry Knox[2]
SeatKnoxville
Largest cityKnoxville
Government
 • MayorGlenn Jacobs (R)
Area
 • Total
526 sq mi (1,360 km2)
 • Land508 sq mi (1,320 km2)
 • Water18 sq mi (50 km2)  3.5%
Population
 (2020)
 • Total
478,971 Increase
 • Estimate 
(2023)
500,669 Increase
 • Density910.6/sq mi (351.6/km2)
Congressional district2nd
Websiteknoxcounty.org

Knox County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 478,971,[3] making it the third-most populous county in Tennessee. Its county seat is Knoxville,[4] which is the third-most populous city in Tennessee. Knox County is included in the Knoxville metropolitan area. The county is located at the geographical center of the Great Valley of East Tennessee. Near the heart of the county is the origin of the Tennessee River, at the confluence of the Holston and French Broad rivers.

  1. ^ William Blount, "[1]," Genealogical "Fact Sheets" About Knox County. Retrieved: August 5, 2023.
  2. ^ Steve Cotham, "Knox County," Tennessee Encyclopedia of History and Culture. Retrieved: October 18, 2013.
  3. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved December 3, 2013.
  4. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.