| Markham to Cibolo (Texas) | 1,018.61 mi (1,639.29 km) |
| Markham to Cicero (Illinois) | 17.26 mi (27.78 km) |
| Markham to Cimarron Hills (Colorado) | 915.37 mi (1,473.15 km) |
| Markham to Cincinnati (Ohio) | 238.62 mi (384.03 km) |
| Markham to Cinco Ranch (Texas) | 935.29 mi (1,505.20 km) |
| Markham to Circleville (Ohio) | 284.98 mi (458.63 km) |
| Markham to Citrus (California) | 1,716.51 mi (2,762.45 km) |
| Markham to Citrus Heights (California) | 1,774.45 mi (2,855.71 km) |
| Markham to Citrus Park (Florida) | 978.31 mi (1,574.44 km) |
| Markham to Claiborne (Louisiana) | 673.38 mi (1,083.69 km) |
| Markham to Claremont (California) | 1,707.30 mi (2,747.64 km) |
| Markham to Claremont (New Hampshire) | 790.69 mi (1,272.49 km) |
| Markham to Claremore (Oklahoma) | 560.27 mi (901.66 km) |
| Markham to Clarksburg (Maryland) | 572.02 mi (920.57 km) |
| Markham to Clarksburg (West Virginia) | 418.90 mi (674.16 km) |
