| Harwich to Cloverly (Maryland) | 3,701.01 mi (5,956.21 km) |
| Harwich to Clovis (California) | 5,347.96 mi (8,606.71 km) |
| Harwich to Clovis (New Mexico) | 4,936.17 mi (7,944.00 km) |
| Harwich to Clute (Texas) | 4,931.26 mi (7,936.09 km) |
| Harwich to Coachella (California) | 5,419.01 mi (8,721.05 km) |
| Harwich to Coalinga (California) | 5,407.07 mi (8,701.84 km) |
| Harwich to Coamo (Puerto Rico) | 4,293.22 mi (6,909.27 km) |
| Harwich to Coatesville (Pennsylvania) | 3,613.77 mi (5,815.80 km) |
| Harwich to Cockeysville (Maryland) | 3,669.10 mi (5,904.84 km) |
| Harwich to Cocoa (Florida) | 4,373.15 mi (7,037.90 km) |
| Harwich to Cocoa Beach (Florida) | 4,369.81 mi (7,032.53 km) |
| Harwich to Coconut Creek (Florida) | 4,455.35 mi (7,170.19 km) |
| Harwich to Coeur d'Alene (Idaho) | 4,644.55 mi (7,474.67 km) |
| Harwich to Cohoes (New York) | 3,406.84 mi (5,482.78 km) |
| Harwich to Cold Springs (Nevada) | 5,190.49 mi (8,353.29 km) |
