| Markham to Cloverleaf (Texas) | 916.86 mi (1,475.54 km) |
| Markham to Cloverly (Maryland) | 588.23 mi (946.66 km) |
| Markham to Clovis (California) | 1,733.76 mi (2,790.21 km) |
| Markham to Clovis (New Mexico) | 976.02 mi (1,570.76 km) |
| Markham to Clute (Texas) | 970.38 mi (1,561.68 km) |
| Markham to Coachella (California) | 1,640.77 mi (2,640.56 km) |
| Markham to Coalinga (California) | 1,784.30 mi (2,871.55 km) |
| Markham to Coamo (Puerto Rico) | 2,055.38 mi (3,307.82 km) |
| Markham to Coatesville (Pennsylvania) | 630.35 mi (1,014.44 km) |
| Markham to Cockeysville (Maryland) | 598.49 mi (963.18 km) |
| Markham to Cocoa (Florida) | 992.92 mi (1,597.94 km) |
| Markham to Cocoa Beach (Florida) | 999.20 mi (1,608.06 km) |
| Markham to Coconut Creek (Florida) | 1,141.42 mi (1,836.93 km) |
| Markham to Coeur d'Alene (Idaho) | 1,481.43 mi (2,384.14 km) |
| Markham to Cohoes (New York) | 719.58 mi (1,158.06 km) |
