| Highgate to Oak Harbor (Washington) | 4,748.74 mi (7,642.36 km) |
| Highgate to Oak Hills (Oregon) | 4,912.28 mi (7,905.54 km) |
| Highgate to Oak Lawn (Illinois) | 3,957.18 mi (6,368.46 km) |
| Highgate to Oak Park (California) | 5,446.05 mi (8,764.57 km) |
| Highgate to Oak Park (Illinois) | 3,950.52 mi (6,357.74 km) |
| Highgate to Oak Park (Michigan) | 3,747.23 mi (6,030.58 km) |
| Highgate to Oak Ridge (Florida) | 4,342.27 mi (6,988.21 km) |
| Highgate to Oak Ridge (New Jersey) | 3,465.24 mi (5,576.76 km) |
| Highgate to Oak Ridge (Tennessee) | 4,093.53 mi (6,587.91 km) |
| Highgate to Oakdale (California) | 5,304.33 mi (8,536.49 km) |
| Highgate to Oakdale (Minnesota) | 3,996.78 mi (6,432.19 km) |
| Highgate to Oakland (California) | 5,343.39 mi (8,599.36 km) |
| Highgate to Oakland (New Jersey) | 3,454.86 mi (5,560.07 km) |
| Highgate to Oakland Park (Florida) | 4,404.29 mi (7,088.02 km) |
| Highgate to Oakleaf Plantation (Florida) | 4,275.30 mi (6,880.43 km) |
