| Watertown Town to Oakleaf Plantation (Florida) | 1,029.18 mi (1,656.30 km) |
| Watertown Town to Oakley (California) | 2,644.51 mi (4,255.93 km) |
| Watertown Town to Oakton (Virginia) | 401.05 mi (645.43 km) |
| Watertown Town to Oakville (Missouri) | 1,040.40 mi (1,674.36 km) |
| Watertown Town to Oatfield (Oregon) | 2,524.94 mi (4,063.49 km) |
| Watertown Town to Ocala (Florida) | 1,097.51 mi (1,766.27 km) |
| Watertown Town to Ocean Acres (New Jersey) | 243.03 mi (391.13 km) |
| Watertown Town to Ocean City (New Jersey) | 279.23 mi (449.38 km) |
| Watertown Town to Ocean Pines (Maryland) | 345.60 mi (556.18 km) |
| Watertown Town to Ocean Pointe (Hawaii) | 5,083.53 mi (8,181.15 km) |
| Watertown Town to Ocean Springs (Mississippi) | 1,276.89 mi (2,054.95 km) |
| Watertown Town to Oceanside (California) | 2,563.52 mi (4,125.58 km) |
| Watertown Town to Oceanside (New York) | 174.91 mi (281.49 km) |
| Watertown Town to Ocoee (Florida) | 1,114.87 mi (1,794.22 km) |
| Watertown Town to Oconomowoc (Wisconsin) | 878.72 mi (1,414.17 km) |
