| River Ridge to Silver Firs (Washington) | 2,091.70 mi (3,366.27 km) |
| River Ridge to Silver Spring (Maryland) | 975.68 mi (1,570.20 km) |
| River Ridge to Silver Springs Shores (Florida) | 496.60 mi (799.21 km) |
| River Ridge to Silverdale (Washington) | 2,108.71 mi (3,393.65 km) |
| River Ridge to Silverton (Oregon) | 2,045.58 mi (3,292.04 km) |
| River Ridge to Simi Valley (California) | 1,690.15 mi (2,720.04 km) |
| River Ridge to Simpsonville (South Carolina) | 569.47 mi (916.48 km) |
| River Ridge to Sioux City (Iowa) | 931.28 mi (1,498.74 km) |
| River Ridge to Sioux Falls (South Dakota) | 1,004.32 mi (1,616.30 km) |
| River Ridge to Skokie (Illinois) | 845.75 mi (1,361.10 km) |
| River Ridge to Sleepy Hollow (New York) | 1,195.07 mi (1,923.28 km) |
| River Ridge to Slidell (Louisiana) | 34.66 mi (55.78 km) |
| River Ridge to Smithfield (North Carolina) | 788.61 mi (1,269.15 km) |
| River Ridge to Smithfield (Utah) | 1,454.71 mi (2,341.13 km) |
| River Ridge to Smithville (Missouri) | 696.87 mi (1,121.50 km) |
