| Wauwatosa to Siloam Springs (Arkansas) | 587.23 mi (945.06 km) |
| Wauwatosa to Silver Firs (Washington) | 1,671.88 mi (2,690.64 km) |
| Wauwatosa to Silver Spring (Maryland) | 638.19 mi (1,027.07 km) |
| Wauwatosa to Silver Springs Shores (Florida) | 1,019.98 mi (1,641.50 km) |
| Wauwatosa to Silverdale (Washington) | 1,697.04 mi (2,731.13 km) |
| Wauwatosa to Silverton (Oregon) | 1,717.93 mi (2,764.74 km) |
| Wauwatosa to Simi Valley (California) | 1,753.06 mi (2,821.28 km) |
| Wauwatosa to Simpsonville (South Carolina) | 653.82 mi (1,052.23 km) |
| Wauwatosa to Sioux City (Iowa) | 425.35 mi (684.53 km) |
| Wauwatosa to Sioux Falls (South Dakota) | 438.33 mi (705.43 km) |
| Wauwatosa to Skokie (Illinois) | 72.43 mi (116.57 km) |
| Wauwatosa to Sleepy Hollow (New York) | 737.98 mi (1,187.67 km) |
| Wauwatosa to Slidell (Louisiana) | 887.76 mi (1,428.72 km) |
| Wauwatosa to Smithfield (North Carolina) | 734.05 mi (1,181.34 km) |
| Wauwatosa to Smithfield (Utah) | 1,211.86 mi (1,950.30 km) |
