| Watertown Town to Castle Pines (Colorado) | 1,759.00 mi (2,830.83 km) |
| Watertown Town to Castle Rock (Colorado) | 1,759.93 mi (2,832.33 km) |
| Watertown Town to Castro Valley (California) | 2,670.67 mi (4,298.02 km) |
| Watertown Town to Catalina Foothills (Arizona) | 2,266.27 mi (3,647.21 km) |
| Watertown Town to Cataño (Puerto Rico) | 1,679.76 mi (2,703.31 km) |
| Watertown Town to Cathedral City (California) | 2,500.85 mi (4,024.73 km) |
| Watertown Town to Catonsville (Maryland) | 361.41 mi (581.63 km) |
| Watertown Town to Cave Spring (Virginia) | 587.73 mi (945.86 km) |
| Watertown Town to Cayce (South Carolina) | 790.13 mi (1,271.59 km) |
| Watertown Town to Cayey (Puerto Rico) | 1,701.57 mi (2,738.41 km) |
| Watertown Town to Cedar City (Utah) | 2,218.56 mi (3,570.42 km) |
| Watertown Town to Cedar Falls (Iowa) | 1,081.98 mi (1,741.27 km) |
| Watertown Town to Cedar Hill (Texas) | 1,558.82 mi (2,508.67 km) |
| Watertown Town to Cedar Lake (Indiana) | 838.24 mi (1,349.01 km) |
| Watertown Town to Cedar Mill (Oregon) | 2,532.58 mi (4,075.80 km) |
