| San Gwann to Cloverly (Maryland) | 4,787.07 mi (7,704.05 km) |
| San Gwann to Clovis (California) | 6,615.38 mi (10,646.42 km) |
| San Gwann to Clovis (New Mexico) | 6,133.43 mi (9,870.80 km) |
| San Gwann to Clute (Texas) | 6,045.00 mi (9,728.49 km) |
| San Gwann to Coachella (California) | 6,668.36 mi (10,731.69 km) |
| San Gwann to Coalinga (California) | 6,674.64 mi (10,741.80 km) |
| San Gwann to Coamo (Puerto Rico) | 4,993.40 mi (8,036.10 km) |
| San Gwann to Coatesville (Pennsylvania) | 4,702.45 mi (7,567.86 km) |
| San Gwann to Cockeysville (Maryland) | 4,757.04 mi (7,655.71 km) |
| San Gwann to Cocoa (Florida) | 5,366.08 mi (8,635.87 km) |
| San Gwann to Cocoa Beach (Florida) | 5,360.97 mi (8,627.65 km) |
| San Gwann to Coconut Creek (Florida) | 5,418.66 mi (8,720.49 km) |
| San Gwann to Coeur d'Alene (Idaho) | 5,924.06 mi (9,533.85 km) |
| San Gwann to Cohoes (New York) | 4,515.08 mi (7,266.33 km) |
| San Gwann to Cold Springs (Nevada) | 6,463.64 mi (10,402.22 km) |
