| Oak Ridge to Castle Pines (Colorado) | 1,147.67 mi (1,847.00 km) |
| Oak Ridge to Castle Rock (Colorado) | 1,146.19 mi (1,844.62 km) |
| Oak Ridge to Castro Valley (California) | 2,077.90 mi (3,344.06 km) |
| Oak Ridge to Catalina Foothills (Arizona) | 1,536.66 mi (2,473.01 km) |
| Oak Ridge to Cataño (Puerto Rico) | 1,640.34 mi (2,639.88 km) |
| Oak Ridge to Cathedral City (California) | 1,820.69 mi (2,930.11 km) |
| Oak Ridge to Catonsville (Maryland) | 471.81 mi (759.30 km) |
| Oak Ridge to Cave Spring (Virginia) | 253.23 mi (407.54 km) |
| Oak Ridge to Cayce (South Carolina) | 230.91 mi (371.62 km) |
| Oak Ridge to Cayey (Puerto Rico) | 1,657.00 mi (2,666.68 km) |
| Oak Ridge to Cedar City (Utah) | 1,591.14 mi (2,560.69 km) |
| Oak Ridge to Cedar Falls (Iowa) | 628.54 mi (1,011.54 km) |
| Oak Ridge to Cedar Hill (Texas) | 759.30 mi (1,221.97 km) |
| Oak Ridge to Cedar Lake (Indiana) | 410.15 mi (660.07 km) |
| Oak Ridge to Cedar Mill (Oregon) | 2,098.30 mi (3,376.89 km) |
