| Knic to Cloverly (Maryland) | 4,750.10 mi (7,644.55 km) |
| Knic to Clovis (California) | 6,331.29 mi (10,189.23 km) |
| Knic to Clovis (New Mexico) | 5,977.52 mi (9,619.90 km) |
| Knic to Clute (Texas) | 5,983.53 mi (9,629.56 km) |
| Knic to Coachella (California) | 6,426.70 mi (10,342.77 km) |
| Knic to Coalinga (California) | 6,389.71 mi (10,283.24 km) |
| Knic to Coamo (Puerto Rico) | 5,217.70 mi (8,397.08 km) |
| Knic to Coatesville (Pennsylvania) | 4,662.99 mi (7,504.36 km) |
| Knic to Cockeysville (Maryland) | 4,718.35 mi (7,593.44 km) |
| Knic to Cocoa (Florida) | 5,407.02 mi (8,701.75 km) |
| Knic to Cocoa Beach (Florida) | 5,403.23 mi (8,695.66 km) |
| Knic to Coconut Creek (Florida) | 5,481.94 mi (8,822.34 km) |
| Knic to Coeur d'Alene (Idaho) | 5,599.97 mi (9,012.28 km) |
| Knic to Cohoes (New York) | 4,457.71 mi (7,173.99 km) |
| Knic to Cold Springs (Nevada) | 6,162.62 mi (9,917.78 km) |
