| Round Lake Beach to San Luis Obispo (California) | 1,809.40 mi (2,911.94 km) |
| Round Lake Beach to San Marcos (California) | 1,702.25 mi (2,739.51 km) |
| Round Lake Beach to San Marcos (Texas) | 1,022.58 mi (1,645.68 km) |
| Round Lake Beach to San Marino (California) | 1,715.81 mi (2,761.33 km) |
| Round Lake Beach to San Mateo (California) | 1,830.33 mi (2,945.63 km) |
| Round Lake Beach to San Pablo (California) | 1,821.75 mi (2,931.83 km) |
| Round Lake Beach to San Rafael (California) | 1,830.24 mi (2,945.48 km) |
| Round Lake Beach to San Ramon (California) | 1,805.93 mi (2,906.37 km) |
| Round Lake Beach to San Tan Valley (Arizona) | 1,424.74 mi (2,292.89 km) |
| Round Lake Beach to Sand Springs (Oklahoma) | 608.92 mi (979.97 km) |
| Round Lake Beach to Sandusky (Ohio) | 283.90 mi (456.90 km) |
| Round Lake Beach to Sandy (Oregon) | 1,702.15 mi (2,739.35 km) |
| Round Lake Beach to Sandy (Utah) | 1,232.77 mi (1,983.95 km) |
| Round Lake Beach to Sandy Springs (Georgia) | 617.00 mi (992.97 km) |
| Round Lake Beach to Sanford (Florida) | 1,012.97 mi (1,630.22 km) |
