| Rancho San Diego to Cadillac (Michigan) | 1,863.93 mi (2,999.71 km) |
| Rancho San Diego to Caguas (Puerto Rico) | 3,294.54 mi (5,302.04 km) |
| Rancho San Diego to Cahokia (Illinois) | 1,547.57 mi (2,490.58 km) |
| Rancho San Diego to Calabasas (California) | 138.54 mi (222.96 km) |
| Rancho San Diego to Caldwell (Idaho) | 752.07 mi (1,210.34 km) |
| Rancho San Diego to Caledonia (Wisconsin) | 1,719.82 mi (2,767.79 km) |
| Rancho San Diego to Calera (Alabama) | 1,743.72 mi (2,806.24 km) |
| Rancho San Diego to Calexico (California) | 83.02 mi (133.61 km) |
| Rancho San Diego to Calhoun (Georgia) | 1,836.17 mi (2,955.03 km) |
| Rancho San Diego to California (Maryland) | 2,286.57 mi (3,679.87 km) |
| Rancho San Diego to California City (California) | 174.27 mi (280.46 km) |
| Rancho San Diego to Callaway (Florida) | 1,850.82 mi (2,978.61 km) |
| Rancho San Diego to Calumet City (Illinois) | 1,718.12 mi (2,765.05 km) |
| Rancho San Diego to Calverton (Maryland) | 2,260.06 mi (3,637.22 km) |
| Rancho San Diego to Camano (Washington) | 1,104.16 mi (1,776.98 km) |
