| Thornbury to Cookeville (Tennessee) | 4,036.95 mi (6,496.84 km) |
| Thornbury to Coolidge (Arizona) | 5,191.65 mi (8,355.16 km) |
| Thornbury to Coon Rapids (Minnesota) | 3,913.30 mi (6,297.85 km) |
| Thornbury to Cooper City (Florida) | 4,315.25 mi (6,944.72 km) |
| Thornbury to Coos Bay (Oregon) | 5,007.68 mi (8,059.08 km) |
| Thornbury to Copiague (New York) | 3,337.43 mi (5,371.07 km) |
| Thornbury to Coppell (Texas) | 4,649.99 mi (7,483.43 km) |
| Thornbury to Copperas Cove (Texas) | 4,781.08 mi (7,694.40 km) |
| Thornbury to Coral Gables (Florida) | 4,331.90 mi (6,971.52 km) |
| Thornbury to Coral Springs (Florida) | 4,302.83 mi (6,924.73 km) |
| Thornbury to Coral Terrace (Florida) | 4,331.16 mi (6,970.33 km) |
| Thornbury to Coralville (Iowa) | 4,012.14 mi (6,456.92 km) |
| Thornbury to Coram (New York) | 3,312.55 mi (5,331.03 km) |
| Thornbury to Corcoran (California) | 5,285.41 mi (8,506.04 km) |
| Thornbury to Cordele (Georgia) | 4,168.21 mi (6,708.08 km) |
