| Martin to Cloverly (Maryland) | 4,484.76 mi (7,217.53 km) |
| Martin to Clovis (California) | 5,983.10 mi (9,628.87 km) |
| Martin to Clovis (New Mexico) | 5,662.55 mi (9,113.00 km) |
| Martin to Clute (Texas) | 5,699.87 mi (9,173.05 km) |
| Martin to Coachella (California) | 6,087.21 mi (9,796.41 km) |
| Martin to Coalinga (California) | 6,041.21 mi (9,722.39 km) |
| Martin to Coamo (Puerto Rico) | 5,071.82 mi (8,162.31 km) |
| Martin to Coatesville (Pennsylvania) | 4,397.40 mi (7,076.92 km) |
| Martin to Cockeysville (Maryland) | 4,452.59 mi (7,165.75 km) |
| Martin to Cocoa (Florida) | 5,168.61 mi (8,318.08 km) |
| Martin to Cocoa Beach (Florida) | 5,165.44 mi (8,312.97 km) |
| Martin to Coconut Creek (Florida) | 5,252.77 mi (8,453.52 km) |
| Martin to Coeur d'Alene (Idaho) | 5,246.11 mi (8,442.80 km) |
| Martin to Cohoes (New York) | 4,186.79 mi (6,737.99 km) |
| Martin to Cold Springs (Nevada) | 5,811.64 mi (9,352.93 km) |
