| Slough to Cloverly (Maryland) | 3,635.33 mi (5,850.50 km) |
| Slough to Clovis (California) | 5,312.23 mi (8,549.21 km) |
| Slough to Clovis (New Mexico) | 4,884.50 mi (7,860.84 km) |
| Slough to Clute (Texas) | 4,869.69 mi (7,837.01 km) |
| Slough to Coachella (California) | 5,377.69 mi (8,654.56 km) |
| Slough to Coalinga (California) | 5,371.42 mi (8,644.46 km) |
| Slough to Coamo (Puerto Rico) | 4,210.96 mi (6,776.89 km) |
| Slough to Coatesville (Pennsylvania) | 3,548.18 mi (5,710.24 km) |
| Slough to Cockeysville (Maryland) | 3,603.53 mi (5,799.32 km) |
| Slough to Cocoa (Florida) | 4,301.78 mi (6,923.05 km) |
| Slough to Cocoa Beach (Florida) | 4,298.33 mi (6,917.50 km) |
| Slough to Coconut Creek (Florida) | 4,382.42 mi (7,052.82 km) |
| Slough to Coeur d'Alene (Idaho) | 4,615.25 mi (7,427.53 km) |
| Slough to Cohoes (New York) | 3,342.70 mi (5,379.56 km) |
| Slough to Cold Springs (Nevada) | 5,157.23 mi (8,299.76 km) |
