| Slough to Cookeville (Tennessee) | 4,117.32 mi (6,626.19 km) |
| Slough to Coolidge (Arizona) | 5,263.44 mi (8,470.69 km) |
| Slough to Coon Rapids (Minnesota) | 3,986.86 mi (6,416.24 km) |
| Slough to Cooper City (Florida) | 4,398.54 mi (7,078.76 km) |
| Slough to Coos Bay (Oregon) | 5,066.29 mi (8,153.41 km) |
| Slough to Copiague (New York) | 3,419.03 mi (5,502.40 km) |
| Slough to Coppell (Texas) | 4,728.02 mi (7,609.01 km) |
| Slough to Copperas Cove (Texas) | 4,859.46 mi (7,820.55 km) |
| Slough to Coral Gables (Florida) | 4,415.21 mi (7,105.60 km) |
| Slough to Coral Springs (Florida) | 4,386.10 mi (7,058.75 km) |
| Slough to Coral Terrace (Florida) | 4,414.47 mi (7,104.41 km) |
| Slough to Coralville (Iowa) | 4,088.29 mi (6,579.46 km) |
| Slough to Coram (New York) | 3,394.16 mi (5,462.37 km) |
| Slough to Corcoran (California) | 5,351.09 mi (8,611.75 km) |
| Slough to Cordele (Georgia) | 4,250.14 mi (6,839.94 km) |
