| Grinon to Cloverly (Maryland) | 3,773.69 mi (6,073.17 km) |
| Grinon to Clovis (California) | 5,739.45 mi (9,236.76 km) |
| Grinon to Clovis (New Mexico) | 5,165.25 mi (8,312.66 km) |
| Grinon to Clute (Texas) | 5,031.88 mi (8,098.03 km) |
| Grinon to Coachella (California) | 5,753.58 mi (9,259.50 km) |
| Grinon to Coalinga (California) | 5,798.33 mi (9,331.51 km) |
| Grinon to Coamo (Puerto Rico) | 3,981.86 mi (6,408.18 km) |
| Grinon to Coatesville (Pennsylvania) | 3,690.70 mi (5,939.61 km) |
| Grinon to Cockeysville (Maryland) | 3,744.55 mi (6,026.27 km) |
| Grinon to Cocoa (Florida) | 4,330.62 mi (6,969.47 km) |
| Grinon to Cocoa Beach (Florida) | 4,325.36 mi (6,960.99 km) |
| Grinon to Coconut Creek (Florida) | 4,381.02 mi (7,050.57 km) |
| Grinon to Coeur d'Alene (Idaho) | 5,106.17 mi (8,217.58 km) |
| Grinon to Cohoes (New York) | 3,512.65 mi (5,653.07 km) |
| Grinon to Cold Springs (Nevada) | 5,607.82 mi (9,024.92 km) |
