| Martin to Cookeville (Tennessee) | 4,954.98 mi (7,974.27 km) |
| Martin to Coolidge (Arizona) | 6,004.52 mi (9,663.34 km) |
| Martin to Coon Rapids (Minnesota) | 4,755.97 mi (7,654.00 km) |
| Martin to Cooper City (Florida) | 5,269.04 mi (8,479.70 km) |
| Martin to Coos Bay (Oregon) | 5,671.29 mi (9,127.07 km) |
| Martin to Copiague (New York) | 4,271.22 mi (6,873.87 km) |
| Martin to Coppell (Texas) | 5,538.81 mi (8,913.86 km) |
| Martin to Copperas Cove (Texas) | 5,673.47 mi (9,130.57 km) |
| Martin to Coral Gables (Florida) | 5,286.10 mi (8,507.16 km) |
| Martin to Coral Springs (Florida) | 5,256.38 mi (8,459.33 km) |
| Martin to Coral Terrace (Florida) | 5,285.28 mi (8,505.84 km) |
| Martin to Coralville (Iowa) | 4,882.57 mi (7,857.74 km) |
| Martin to Coram (New York) | 4,246.47 mi (6,834.03 km) |
| Martin to Corcoran (California) | 6,026.45 mi (9,698.63 km) |
| Martin to Cordele (Georgia) | 5,104.37 mi (8,214.69 km) |
