| Riviera Beach to Silver Firs (Washington) | 2,684.87 mi (4,320.88 km) |
| Riviera Beach to Silver Spring (Maryland) | 862.65 mi (1,388.30 km) |
| Riviera Beach to Silver Springs Shores (Florida) | 199.94 mi (321.77 km) |
| Riviera Beach to Silverdale (Washington) | 2,704.50 mi (4,352.48 km) |
| Riviera Beach to Silverton (Oregon) | 2,660.94 mi (4,282.36 km) |
| Riviera Beach to Simi Valley (California) | 2,344.57 mi (3,773.22 km) |
| Riviera Beach to Simpsonville (South Carolina) | 564.15 mi (907.91 km) |
| Riviera Beach to Sioux City (Iowa) | 1,422.71 mi (2,289.64 km) |
| Riviera Beach to Sioux Falls (South Dakota) | 1,485.97 mi (2,391.44 km) |
| Riviera Beach to Skokie (Illinois) | 1,139.76 mi (1,834.26 km) |
| Riviera Beach to Sleepy Hollow (New York) | 1,050.09 mi (1,689.95 km) |
| Riviera Beach to Slidell (Louisiana) | 636.89 mi (1,024.98 km) |
| Riviera Beach to Smithfield (North Carolina) | 611.85 mi (984.67 km) |
| Riviera Beach to Smithfield (Utah) | 2,071.97 mi (3,334.51 km) |
| Riviera Beach to Smithville (Missouri) | 1,206.74 mi (1,942.05 km) |
