| San Mateo to Sugar Hill (Georgia) | 2,141.44 mi (3,446.31 km) |
| San Mateo to Sugar Land (Texas) | 1,624.40 mi (2,614.22 km) |
| San Mateo to Sugarland Run (Virginia) | 2,413.96 mi (3,884.89 km) |
| San Mateo to Sugarmill Woods (Florida) | 2,363.61 mi (3,803.86 km) |
| San Mateo to Suisun City (California) | 50.79 mi (81.74 km) |
| San Mateo to Suitland (Maryland) | 2,440.46 mi (3,927.54 km) |
| San Mateo to Sulphur (Louisiana) | 1,728.20 mi (2,781.28 km) |
| San Mateo to Sulphur Springs (Texas) | 1,529.82 mi (2,462.00 km) |
| San Mateo to Summerfield (Maryland) | 2,442.51 mi (3,930.84 km) |
| San Mateo to Summerfield (North Carolina) | 2,326.00 mi (3,743.34 km) |
| San Mateo to Summerlin South (Nevada) | 398.26 mi (640.94 km) |
| San Mateo to Summerville (South Carolina) | 2,377.32 mi (3,825.93 km) |
| San Mateo to Summit (Illinois) | 1,845.24 mi (2,969.63 km) |
| San Mateo to Summit (New Jersey) | 2,547.04 mi (4,099.07 km) |
| San Mateo to Sumner (Washington) | 667.92 mi (1,074.91 km) |
