| South San Francisco to Cibolo (Texas) | 1,495.50 mi (2,406.77 km) |
| South San Francisco to Cicero (Illinois) | 1,851.05 mi (2,978.97 km) |
| South San Francisco to Cimarron Hills (Colorado) | 963.49 mi (1,550.58 km) |
| South San Francisco to Cincinnati (Ohio) | 2,040.62 mi (3,284.06 km) |
| South San Francisco to Cinco Ranch (Texas) | 1,620.36 mi (2,607.71 km) |
| South San Francisco to Circleville (Ohio) | 2,118.39 mi (3,409.22 km) |
| South San Francisco to Citrus (California) | 352.14 mi (566.72 km) |
| South San Francisco to Citrus Heights (California) | 94.61 mi (152.26 km) |
| South San Francisco to Citrus Park (Florida) | 2,386.43 mi (3,840.59 km) |
| South San Francisco to Claiborne (Louisiana) | 1,736.74 mi (2,795.01 km) |
| South San Francisco to Claremont (California) | 358.73 mi (577.32 km) |
| South San Francisco to Claremont (New Hampshire) | 2,620.34 mi (4,217.03 km) |
| South San Francisco to Claremore (Oklahoma) | 1,477.56 mi (2,377.90 km) |
| South San Francisco to Clarksburg (Maryland) | 2,420.55 mi (3,895.49 km) |
| South San Francisco to Clarksburg (West Virginia) | 2,259.38 mi (3,636.12 km) |
