| Placentia to Cloverleaf (Texas) | 1,358.19 mi (2,185.79 km) |
| Placentia to Cloverly (Maryland) | 2,278.51 mi (3,666.91 km) |
| Placentia to Clovis (California) | 228.18 mi (367.22 km) |
| Placentia to Clovis (New Mexico) | 838.48 mi (1,349.41 km) |
| Placentia to Clute (Texas) | 1,362.46 mi (2,192.66 km) |
| Placentia to Coachella (California) | 99.20 mi (159.65 km) |
| Placentia to Coalinga (California) | 209.58 mi (337.29 km) |
| Placentia to Coamo (Puerto Rico) | 3,341.77 mi (5,378.06 km) |
| Placentia to Coatesville (Pennsylvania) | 2,337.52 mi (3,761.88 km) |
| Placentia to Cockeysville (Maryland) | 2,296.61 mi (3,696.04 km) |
| Placentia to Cocoa (Florida) | 2,213.99 mi (3,563.07 km) |
| Placentia to Cocoa Beach (Florida) | 2,223.16 mi (3,577.82 km) |
| Placentia to Coconut Creek (Florida) | 2,299.18 mi (3,700.17 km) |
| Placentia to Coeur d'Alene (Idaho) | 956.69 mi (1,539.64 km) |
| Placentia to Cohoes (New York) | 2,440.95 mi (3,928.33 km) |
