| Royal Palm Beach to Silver Firs (Washington) | 2,681.98 mi (4,316.23 km) |
| Royal Palm Beach to Silver Spring (Maryland) | 869.71 mi (1,399.66 km) |
| Royal Palm Beach to Silver Springs Shores (Florida) | 199.13 mi (320.46 km) |
| Royal Palm Beach to Silverdale (Washington) | 2,701.53 mi (4,347.70 km) |
| Royal Palm Beach to Silverton (Oregon) | 2,657.23 mi (4,276.41 km) |
| Royal Palm Beach to Simi Valley (California) | 2,338.05 mi (3,762.73 km) |
| Royal Palm Beach to Simpsonville (South Carolina) | 567.42 mi (913.17 km) |
| Royal Palm Beach to Sioux City (Iowa) | 1,421.62 mi (2,287.88 km) |
| Royal Palm Beach to Sioux Falls (South Dakota) | 1,485.17 mi (2,390.15 km) |
| Royal Palm Beach to Skokie (Illinois) | 1,141.59 mi (1,837.21 km) |
| Royal Palm Beach to Sleepy Hollow (New York) | 1,058.07 mi (1,702.80 km) |
| Royal Palm Beach to Slidell (Louisiana) | 630.76 mi (1,015.12 km) |
| Royal Palm Beach to Smithfield (North Carolina) | 618.66 mi (995.63 km) |
| Royal Palm Beach to Smithfield (Utah) | 2,068.04 mi (3,328.19 km) |
| Royal Palm Beach to Smithville (Missouri) | 1,204.90 mi (1,939.10 km) |
