| Rancho San Diego to Clarksdale (Mississippi) | 1,517.59 mi (2,442.33 km) |
| Rancho San Diego to Clarkston (Georgia) | 1,880.93 mi (3,027.07 km) |
| Rancho San Diego to Clarksville (Indiana) | 1,784.07 mi (2,871.18 km) |
| Rancho San Diego to Clarksville (Tennessee) | 1,694.52 mi (2,727.07 km) |
| Rancho San Diego to Clawson (Michigan) | 1,951.46 mi (3,140.57 km) |
| Rancho San Diego to Clay (Alabama) | 1,746.73 mi (2,811.08 km) |
| Rancho San Diego to Clayton (California) | 455.60 mi (733.21 km) |
| Rancho San Diego to Clayton (Missouri) | 1,540.14 mi (2,478.62 km) |
| Rancho San Diego to Clayton (North Carolina) | 2,193.26 mi (3,529.71 km) |
| Rancho San Diego to Clayton (Ohio) | 1,868.27 mi (3,006.68 km) |
| Rancho San Diego to Clearfield (Utah) | 636.28 mi (1,023.99 km) |
| Rancho San Diego to Clearlake (California) | 534.20 mi (859.71 km) |
| Rancho San Diego to Clearwater (Florida) | 2,053.83 mi (3,305.32 km) |
| Rancho San Diego to Cleburne (Texas) | 1,134.57 mi (1,825.92 km) |
| Rancho San Diego to Clemmons (North Carolina) | 2,082.88 mi (3,352.08 km) |
