| San Mateo to Oak Grove (South Carolina) | 2,302.68 mi (3,705.81 km) |
| San Mateo to Oak Harbor (Washington) | 742.53 mi (1,194.98 km) |
| San Mateo to Oak Hills (Oregon) | 552.61 mi (889.34 km) |
| San Mateo to Oak Lawn (Illinois) | 1,848.65 mi (2,975.12 km) |
| San Mateo to Oak Park (California) | 305.77 mi (492.09 km) |
| San Mateo to Oak Park (Illinois) | 1,846.23 mi (2,971.23 km) |
| San Mateo to Oak Park (Michigan) | 2,079.66 mi (3,346.88 km) |
| San Mateo to Oak Ridge (Florida) | 2,430.60 mi (3,911.67 km) |
| San Mateo to Oak Ridge (New Jersey) | 2,536.12 mi (4,081.49 km) |
| San Mateo to Oak Ridge (Tennessee) | 2,093.02 mi (3,368.39 km) |
| San Mateo to Oakdale (California) | 81.45 mi (131.08 km) |
| San Mateo to Oakdale (Minnesota) | 1,598.00 mi (2,571.73 km) |
| San Mateo to Oakland (California) | 17.27 mi (27.79 km) |
| San Mateo to Oakland (New Jersey) | 2,549.26 mi (4,102.64 km) |
| San Mateo to Oakland Park (Florida) | 2,571.86 mi (4,139.01 km) |
