| Watertown Town to Cadillac (Michigan) | 726.59 mi (1,169.34 km) |
| Watertown Town to Caguas (Puerto Rico) | 1,694.88 mi (2,727.64 km) |
| Watertown Town to Cahokia (Illinois) | 1,030.40 mi (1,658.27 km) |
| Watertown Town to Calabasas (California) | 2,603.78 mi (4,190.38 km) |
| Watertown Town to Caldwell (Idaho) | 2,270.60 mi (3,654.18 km) |
| Watertown Town to Caledonia (Wisconsin) | 848.63 mi (1,365.74 km) |
| Watertown Town to Calera (Alabama) | 1,060.79 mi (1,707.17 km) |
| Watertown Town to Calexico (California) | 2,488.62 mi (4,005.04 km) |
| Watertown Town to Calhoun (Georgia) | 920.63 mi (1,481.61 km) |
| Watertown Town to California (Maryland) | 396.87 mi (638.71 km) |
| Watertown Town to California City (California) | 2,531.89 mi (4,074.68 km) |
| Watertown Town to Callaway (Florida) | 1,161.45 mi (1,869.18 km) |
| Watertown Town to Calumet City (Illinois) | 841.13 mi (1,353.66 km) |
| Watertown Town to Calverton (Maryland) | 378.97 mi (609.89 km) |
| Watertown Town to Camano (Washington) | 2,478.69 mi (3,989.07 km) |
