Oak Ridge
- County:
- Anderson County
- County Seat:
- No
- Area (mi²):
- 85.25
- State:
- Tennessee
Oak Ridge is a city located in Anderson County, Tennessee. Oak Ridge has a 2026 population of 34,039. Oak Ridge is currently growing at a rate of 1.76% annually and its population has increased by 8.19% since the most recent census, which recorded a population of 31,461 in 2020.