| Rancho San Diego to Cibolo (Texas) | 1,126.36 mi (1,812.70 km) |
| Rancho San Diego to Cicero (Illinois) | 1,710.79 mi (2,753.25 km) |
| Rancho San Diego to Cimarron Hills (Colorado) | 802.85 mi (1,292.06 km) |
| Rancho San Diego to Cincinnati (Ohio) | 1,855.14 mi (2,985.55 km) |
| Rancho San Diego to Cinco Ranch (Texas) | 1,264.95 mi (2,035.74 km) |
| Rancho San Diego to Circleville (Ohio) | 1,940.93 mi (3,123.62 km) |
| Rancho San Diego to Citrus (California) | 108.95 mi (175.34 km) |
| Rancho San Diego to Citrus Heights (California) | 477.38 mi (768.27 km) |
| Rancho San Diego to Citrus Park (Florida) | 2,063.45 mi (3,320.80 km) |
| Rancho San Diego to Claiborne (Louisiana) | 1,434.98 mi (2,309.37 km) |
| Rancho San Diego to Claremont (California) | 104.78 mi (168.63 km) |
| Rancho San Diego to Claremont (New Hampshire) | 2,500.92 mi (4,024.84 km) |
| Rancho San Diego to Claremore (Oklahoma) | 1,234.77 mi (1,987.18 km) |
| Rancho San Diego to Clarksburg (Maryland) | 2,242.82 mi (3,609.47 km) |
| Rancho San Diego to Clarksburg (West Virginia) | 2,079.26 mi (3,346.24 km) |
