Oak Ridge is a city located in the eastern portion of Tennessee within Anderson and Roane counties. Situated approximately 25 miles west of downtown Knoxville, it is officially part of the Knoxville Metropolitan Area. As of the 2020 census, the city had a population of 31,402.
The city is known by several distinct nicknames, including the Atomic City, the Secret City, and the City Behind a Fence. These titles reflect its historical significance and unique identity within the region.