| Mercer Island to Cloverleaf (Texas) | 1,890.31 mi (3,042.17 km) |
| Mercer Island to Cloverly (Maryland) | 2,311.94 mi (3,720.70 km) |
| Mercer Island to Clovis (California) | 753.21 mi (1,212.18 km) |
| Mercer Island to Clovis (New Mexico) | 1,338.06 mi (2,153.41 km) |
| Mercer Island to Clute (Texas) | 1,920.93 mi (3,091.44 km) |
| Mercer Island to Coachella (California) | 1,009.67 mi (1,624.91 km) |
| Mercer Island to Coalinga (California) | 795.34 mi (1,279.98 km) |
| Mercer Island to Coamo (Puerto Rico) | 3,725.49 mi (5,995.60 km) |
| Mercer Island to Coatesville (Pennsylvania) | 2,337.27 mi (3,761.47 km) |
| Mercer Island to Cockeysville (Maryland) | 2,316.47 mi (3,727.99 km) |
| Mercer Island to Cocoa (Florida) | 2,575.81 mi (4,145.37 km) |
| Mercer Island to Cocoa Beach (Florida) | 2,584.40 mi (4,159.18 km) |
| Mercer Island to Coconut Creek (Florida) | 2,701.55 mi (4,347.72 km) |
| Mercer Island to Coeur d'Alene (Idaho) | 253.33 mi (407.70 km) |
| Mercer Island to Cohoes (New York) | 2,347.71 mi (3,778.27 km) |
