Campbell County is a county in the U.S. state of Tennessee. It is located on the state's northern border in East Tennessee. As of the 2020 census, its population was 39,272. Its county seat is Jacksboro. Campbell County is included in the Knoxville metropolitan statistical area.

Knoxville is a city in and the county seat of Knox County, Tennessee, United States. As of the 2020 United States census, Knoxville's population was 190,740, making it the largest city in the East Tennessee Grand Division and the state's third-most-populous city after Nashville and Memphis. It is the principal city of the Knoxville metropolitan area, which had a population of 879,773 in 2020.