| Williamstown to Central Point (Oregon) | 2,471.93 mi (3,978.18 km) |
| Williamstown to Centralia (Illinois) | 761.83 mi (1,226.05 km) |
| Williamstown to Centralia (Washington) | 2,426.31 mi (3,904.77 km) |
| Williamstown to Centreville (Virginia) | 144.07 mi (231.86 km) |
| Williamstown to Ceres (California) | 2,458.49 mi (3,956.55 km) |
| Williamstown to Cerritos (California) | 2,395.03 mi (3,854.43 km) |
| Williamstown to Chalco (Nebraska) | 1,114.65 mi (1,793.85 km) |
| Williamstown to Chalmette (Louisiana) | 1,081.84 mi (1,741.05 km) |
| Williamstown to Chambersburg (Pennsylvania) | 143.08 mi (230.26 km) |
| Williamstown to Chamblee (Georgia) | 652.72 mi (1,050.45 km) |
| Williamstown to Champaign (Illinois) | 704.67 mi (1,134.06 km) |
| Williamstown to Champlin (Minnesota) | 1,009.63 mi (1,624.85 km) |
| Williamstown to Chandler (Arizona) | 2,080.31 mi (3,347.93 km) |
| Williamstown to Chanhassen (Minnesota) | 1,012.16 mi (1,628.91 km) |
| Williamstown to Channahon (Illinois) | 706.70 mi (1,137.32 km) |
