| Watertown Town to Carlsbad (California) | 2,565.50 mi (4,128.77 km) |
| Watertown Town to Carlsbad (New Mexico) | 1,926.55 mi (3,100.49 km) |
| Watertown Town to Carmel (Indiana) | 794.97 mi (1,279.37 km) |
| Watertown Town to Carmichael (California) | 2,609.10 mi (4,198.94 km) |
| Watertown Town to Carney (Maryland) | 346.22 mi (557.19 km) |
| Watertown Town to Carnot-Moon (Pennsylvania) | 485.11 mi (780.71 km) |
| Watertown Town to Carol Stream (Illinois) | 867.64 mi (1,396.33 km) |
| Watertown Town to Carolina (Puerto Rico) | 1,683.67 mi (2,709.61 km) |
| Watertown Town to Carolina Forest (South Carolina) | 727.66 mi (1,171.06 km) |
| Watertown Town to Carpentersville (Illinois) | 873.93 mi (1,406.45 km) |
| Watertown Town to Carpinteria (California) | 2,638.62 mi (4,246.45 km) |
| Watertown Town to Carrboro (North Carolina) | 614.18 mi (988.43 km) |
| Watertown Town to Carroll (Iowa) | 1,208.28 mi (1,944.54 km) |
| Watertown Town to Carrollton (Georgia) | 968.55 mi (1,558.74 km) |
| Watertown Town to Carrollton (Texas) | 1,540.69 mi (2,479.50 km) |
