| Rancho San Diego to Conyers (Georgia) | 1,896.10 mi (3,051.47 km) |
| Rancho San Diego to Cookeville (Tennessee) | 1,796.78 mi (2,891.63 km) |
| Rancho San Diego to Coolidge (Arizona) | 313.31 mi (504.22 km) |
| Rancho San Diego to Coon Rapids (Minnesota) | 1,521.99 mi (2,449.40 km) |
| Rancho San Diego to Cooper City (Florida) | 2,241.79 mi (3,607.81 km) |
| Rancho San Diego to Coos Bay (Oregon) | 833.63 mi (1,341.60 km) |
| Rancho San Diego to Copiague (New York) | 2,445.96 mi (3,936.39 km) |
| Rancho San Diego to Coppell (Texas) | 1,154.98 mi (1,858.76 km) |
| Rancho San Diego to Copperas Cove (Texas) | 1,118.60 mi (1,800.21 km) |
| Rancho San Diego to Coral Gables (Florida) | 2,251.11 mi (3,622.82 km) |
| Rancho San Diego to Coral Springs (Florida) | 2,237.93 mi (3,601.59 km) |
| Rancho San Diego to Coral Terrace (Florida) | 2,248.11 mi (3,617.98 km) |
| Rancho San Diego to Coralville (Iowa) | 1,516.40 mi (2,440.41 km) |
| Rancho San Diego to Coram (New York) | 2,465.85 mi (3,968.40 km) |
| Rancho San Diego to Corcoran (California) | 274.45 mi (441.69 km) |
