| Signal Hill to Cloverleaf (Texas) | 1,375.53 mi (2,213.71 km) |
| Signal Hill to Cloverly (Maryland) | 2,297.19 mi (3,696.97 km) |
| Signal Hill to Clovis (California) | 225.76 mi (363.33 km) |
| Signal Hill to Clovis (New Mexico) | 856.95 mi (1,379.13 km) |
| Signal Hill to Clute (Texas) | 1,379.50 mi (2,220.09 km) |
| Signal Hill to Coachella (California) | 116.60 mi (187.65 km) |
| Signal Hill to Coalinga (California) | 202.52 mi (325.92 km) |
| Signal Hill to Coamo (Puerto Rico) | 3,359.13 mi (5,406.00 km) |
| Signal Hill to Coatesville (Pennsylvania) | 2,356.15 mi (3,791.85 km) |
| Signal Hill to Cockeysville (Maryland) | 2,315.27 mi (3,726.06 km) |
| Signal Hill to Cocoa (Florida) | 2,231.99 mi (3,592.04 km) |
| Signal Hill to Cocoa Beach (Florida) | 2,241.15 mi (3,606.79 km) |
| Signal Hill to Coconut Creek (Florida) | 2,316.85 mi (3,728.61 km) |
| Signal Hill to Coeur d'Alene (Idaho) | 963.11 mi (1,549.98 km) |
| Signal Hill to Cohoes (New York) | 2,459.33 mi (3,957.90 km) |
