| Troy to Oakleaf Plantation (Florida) | 860.71 mi (1,385.18 km) |
| Troy to Oakley (California) | 2,038.42 mi (3,280.53 km) |
| Troy to Oakton (Virginia) | 398.22 mi (640.88 km) |
| Troy to Oakville (Missouri) | 472.56 mi (760.51 km) |
| Troy to Oatfield (Oregon) | 1,950.71 mi (3,139.37 km) |
| Troy to Ocala (Florida) | 927.76 mi (1,493.08 km) |
| Troy to Ocean Acres (New Jersey) | 500.79 mi (805.94 km) |
| Troy to Ocean City (New Jersey) | 501.01 mi (806.30 km) |
| Troy to Ocean Pines (Maryland) | 510.21 mi (821.11 km) |
| Troy to Ocean Pointe (Hawaii) | 4,481.37 mi (7,212.06 km) |
| Troy to Ocean Springs (Mississippi) | 897.00 mi (1,443.58 km) |
| Troy to Oceanside (California) | 1,955.89 mi (3,147.71 km) |
| Troy to Oceanside (New York) | 509.07 mi (819.27 km) |
| Troy to Ocoee (Florida) | 971.63 mi (1,563.69 km) |
| Troy to Oconomowoc (Wisconsin) | 273.30 mi (439.84 km) |
