| Webster Groves to South Pasadena (California) | 1,571.51 mi (2,529.10 km) |
| Webster Groves to South Plainfield (New Jersey) | 858.61 mi (1,381.80 km) |
| Webster Groves to South Portland (Maine) | 1,097.92 mi (1,766.93 km) |
| Webster Groves to South Riding (Virginia) | 691.75 mi (1,113.26 km) |
| Webster Groves to South River (New Jersey) | 859.96 mi (1,383.98 km) |
| Webster Groves to South Salt Lake (Utah) | 1,152.56 mi (1,854.86 km) |
| Webster Groves to South San Francisco (California) | 1,735.28 mi (2,792.67 km) |
| Webster Groves to South San Jose Hills (California) | 1,560.13 mi (2,510.78 km) |
| Webster Groves to South Sioux City (Nebraska) | 415.68 mi (668.98 km) |
| Webster Groves to South St. Paul (Minnesota) | 456.80 mi (735.14 km) |
| Webster Groves to South Valley (New Mexico) | 935.11 mi (1,504.91 km) |
| Webster Groves to South Venice (Florida) | 920.21 mi (1,480.93 km) |
| Webster Groves to South Whittier (California) | 1,568.81 mi (2,524.76 km) |
| Webster Groves to South Yarmouth (Massachusetts) | 1,083.16 mi (1,743.18 km) |
| Webster Groves to Southaven (Mississippi) | 252.03 mi (405.60 km) |
