| Williamstown to Conyers (Georgia) | 649.69 mi (1,045.58 km) |
| Williamstown to Cookeville (Tennessee) | 623.48 mi (1,003.39 km) |
| Williamstown to Coolidge (Arizona) | 2,072.43 mi (3,335.25 km) |
| Williamstown to Coon Rapids (Minnesota) | 1,005.94 mi (1,618.90 km) |
| Williamstown to Cooper City (Florida) | 991.04 mi (1,594.93 km) |
| Williamstown to Coos Bay (Oregon) | 2,523.13 mi (4,060.58 km) |
| Williamstown to Copiague (New York) | 107.83 mi (173.54 km) |
| Williamstown to Coppell (Texas) | 1,306.18 mi (2,102.10 km) |
| Williamstown to Copperas Cove (Texas) | 1,415.44 mi (2,277.94 km) |
| Williamstown to Coral Gables (Florida) | 1,013.48 mi (1,631.04 km) |
| Williamstown to Coral Springs (Florida) | 975.75 mi (1,570.31 km) |
| Williamstown to Coral Terrace (Florida) | 1,011.24 mi (1,627.43 km) |
| Williamstown to Coralville (Iowa) | 880.17 mi (1,416.50 km) |
| Williamstown to Coram (New York) | 132.71 mi (213.58 km) |
| Williamstown to Corcoran (California) | 2,418.89 mi (3,892.82 km) |
