| Riverdale to Sugar Hill (Georgia) | 42.75 mi (68.79 km) |
| Riverdale to Sugar Land (Texas) | 714.91 mi (1,150.54 km) |
| Riverdale to Sugarland Run (Virginia) | 543.82 mi (875.19 km) |
| Riverdale to Sugarmill Woods (Florida) | 352.54 mi (567.36 km) |
| Riverdale to Suisun City (California) | 2,114.25 mi (3,402.56 km) |
| Riverdale to Suitland (Maryland) | 554.27 mi (892.01 km) |
| Riverdale to Sulphur (Louisiana) | 572.88 mi (921.96 km) |
| Riverdale to Sulphur Springs (Texas) | 646.84 mi (1,040.99 km) |
| Riverdale to Summerfield (Maryland) | 558.94 mi (899.53 km) |
| Riverdale to Summerfield (North Carolina) | 313.74 mi (504.91 km) |
| Riverdale to Summerlin South (Nevada) | 1,754.96 mi (2,824.33 km) |
| Riverdale to Summerville (South Carolina) | 247.40 mi (398.15 km) |
| Riverdale to Summit (Illinois) | 597.79 mi (962.05 km) |
| Riverdale to Summit (New Jersey) | 740.90 mi (1,192.36 km) |
| Riverdale to Sumner (Washington) | 2,175.00 mi (3,500.33 km) |
