| Urbandale to Siloam Springs (Arkansas) | 379.02 mi (609.98 km) |
| Urbandale to Silver Firs (Washington) | 1,447.51 mi (2,329.54 km) |
| Urbandale to Silver Spring (Maryland) | 899.98 mi (1,448.38 km) |
| Urbandale to Silver Springs Shores (Florida) | 1,087.91 mi (1,750.82 km) |
| Urbandale to Silverdale (Washington) | 1,470.65 mi (2,366.78 km) |
| Urbandale to Silverton (Oregon) | 1,468.05 mi (2,362.60 km) |
| Urbandale to Simi Valley (California) | 1,446.18 mi (2,327.41 km) |
| Urbandale to Simpsonville (South Carolina) | 786.02 mi (1,264.97 km) |
| Urbandale to Sioux City (Iowa) | 146.32 mi (235.48 km) |
| Urbandale to Sioux Falls (South Dakota) | 199.38 mi (320.87 km) |
| Urbandale to Skokie (Illinois) | 312.13 mi (502.32 km) |
| Urbandale to Sleepy Hollow (New York) | 1,030.77 mi (1,658.86 km) |
| Urbandale to Slidell (Louisiana) | 815.22 mi (1,311.97 km) |
| Urbandale to Smithfield (North Carolina) | 932.94 mi (1,501.43 km) |
| Urbandale to Smithfield (Utah) | 928.76 mi (1,494.70 km) |
