| Markham to Castle Pines (Colorado) | 912.64 mi (1,468.75 km) |
| Markham to Castle Rock (Colorado) | 913.30 mi (1,469.81 km) |
| Markham to Castro Valley (California) | 1,835.77 mi (2,954.39 km) |
| Markham to Catalina Foothills (Arizona) | 1,426.39 mi (2,295.55 km) |
| Markham to Cataño (Puerto Rico) | 2,042.56 mi (3,287.18 km) |
| Markham to Cathedral City (California) | 1,652.46 mi (2,659.37 km) |
| Markham to Catonsville (Maryland) | 597.48 mi (961.55 km) |
| Markham to Cave Spring (Virginia) | 509.14 mi (819.38 km) |
| Markham to Cayce (South Carolina) | 641.00 mi (1,031.59 km) |
| Markham to Cayey (Puerto Rico) | 2,060.42 mi (3,315.92 km) |
| Markham to Cedar City (Utah) | 1,373.25 mi (2,210.04 km) |
| Markham to Cedar Falls (Iowa) | 252.43 mi (406.24 km) |
| Markham to Cedar Hill (Texas) | 804.74 mi (1,295.10 km) |
| Markham to Cedar Lake (Indiana) | 20.56 mi (33.09 km) |
| Markham to Cedar Mill (Oregon) | 1,764.19 mi (2,839.19 km) |
