| Most to Cloverly (Maryland) | 4,230.77 mi (6,808.77 km) |
| Most to Clovis (California) | 5,769.07 mi (9,284.43 km) |
| Most to Clovis (New Mexico) | 5,422.78 mi (8,727.11 km) |
| Most to Clute (Texas) | 5,449.41 mi (8,769.98 km) |
| Most to Coachella (California) | 5,863.87 mi (9,436.99 km) |
| Most to Coalinga (California) | 5,827.56 mi (9,378.56 km) |
| Most to Coamo (Puerto Rico) | 4,826.39 mi (7,767.33 km) |
| Most to Coatesville (Pennsylvania) | 4,143.41 mi (6,668.18 km) |
| Most to Cockeysville (Maryland) | 4,198.64 mi (6,757.06 km) |
| Most to Cocoa (Florida) | 4,912.88 mi (7,906.52 km) |
| Most to Cocoa Beach (Florida) | 4,909.70 mi (7,901.39 km) |
| Most to Coconut Creek (Florida) | 4,997.00 mi (8,041.90 km) |
| Most to Coeur d'Alene (Idaho) | 5,040.41 mi (8,111.75 km) |
| Most to Cohoes (New York) | 3,933.48 mi (6,330.32 km) |
| Most to Cold Springs (Nevada) | 5,601.36 mi (9,014.52 km) |
