| Walnut Park to Siloam Springs (Arkansas) | 1,344.93 mi (2,164.46 km) |
| Walnut Park to Silver Firs (Washington) | 981.38 mi (1,579.38 km) |
| Walnut Park to Silver Spring (Maryland) | 2,295.35 mi (3,694.00 km) |
| Walnut Park to Silver Springs Shores (Florida) | 2,147.12 mi (3,455.45 km) |
| Walnut Park to Silverdale (Washington) | 974.33 mi (1,568.03 km) |
| Walnut Park to Silverton (Oregon) | 799.89 mi (1,287.30 km) |
| Walnut Park to Simi Valley (California) | 36.51 mi (58.76 km) |
| Walnut Park to Simpsonville (South Carolina) | 2,041.27 mi (3,285.10 km) |
| Walnut Park to Sioux City (Iowa) | 1,318.01 mi (2,121.14 km) |
| Walnut Park to Sioux Falls (South Dakota) | 1,327.73 mi (2,136.78 km) |
| Walnut Park to Skokie (Illinois) | 1,739.84 mi (2,800.01 km) |
| Walnut Park to Sleepy Hollow (New York) | 2,452.25 mi (3,946.52 km) |
| Walnut Park to Slidell (Louisiana) | 1,677.87 mi (2,700.27 km) |
| Walnut Park to Smithfield (North Carolina) | 2,250.89 mi (3,622.46 km) |
| Walnut Park to Smithfield (Utah) | 645.31 mi (1,038.52 km) |
