| Imperial Beach to Silver Firs (Washington) | 1,088.95 mi (1,752.49 km) |
| Imperial Beach to Silver Spring (Maryland) | 2,272.09 mi (3,656.58 km) |
| Imperial Beach to Silver Springs Shores (Florida) | 2,086.69 mi (3,358.20 km) |
| Imperial Beach to Silverdale (Washington) | 1,083.01 mi (1,742.94 km) |
| Imperial Beach to Silverton (Oregon) | 911.01 mi (1,466.13 km) |
| Imperial Beach to Simi Valley (California) | 150.31 mi (241.90 km) |
| Imperial Beach to Simpsonville (South Carolina) | 2,000.65 mi (3,219.74 km) |
| Imperial Beach to Sioux City (Iowa) | 1,321.37 mi (2,126.55 km) |
| Imperial Beach to Sioux Falls (South Dakota) | 1,337.58 mi (2,152.62 km) |
| Imperial Beach to Skokie (Illinois) | 1,731.25 mi (2,786.18 km) |
| Imperial Beach to Sleepy Hollow (New York) | 2,436.73 mi (3,921.54 km) |
| Imperial Beach to Slidell (Louisiana) | 1,614.84 mi (2,598.84 km) |
| Imperial Beach to Smithfield (North Carolina) | 2,214.72 mi (3,564.25 km) |
| Imperial Beach to Smithfield (Utah) | 702.94 mi (1,131.27 km) |
| Imperial Beach to Smithville (Missouri) | 1,341.23 mi (2,158.50 km) |
