| Markham to Cordele (Georgia) | 700.54 mi (1,127.41 km) |
| Markham to Corinth (Mississippi) | 461.81 mi (743.21 km) |
| Markham to Corinth (Texas) | 777.82 mi (1,251.79 km) |
| Markham to Cornelius (North Carolina) | 560.57 mi (902.15 km) |
| Markham to Cornelius (Oregon) | 1,776.36 mi (2,858.78 km) |
| Markham to Corning (New York) | 548.06 mi (882.02 km) |
| Markham to Corona (California) | 1,707.83 mi (2,748.48 km) |
| Markham to Coronado (California) | 1,726.35 mi (2,778.29 km) |
| Markham to Corpus Christi (Texas) | 1,103.71 mi (1,776.24 km) |
| Markham to Corsicana (Texas) | 816.28 mi (1,313.68 km) |
| Markham to Cortland (New York) | 593.73 mi (955.52 km) |
| Markham to Corvallis (Oregon) | 1,793.14 mi (2,885.77 km) |
| Markham to Coshocton (Ohio) | 318.61 mi (512.75 km) |
| Markham to Costa Mesa (California) | 1,731.79 mi (2,787.05 km) |
| Markham to Coto de Caza (California) | 1,717.32 mi (2,763.76 km) |
