| Riverdale to Security-Widefield (Colorado) | 1,185.04 mi (1,907.15 km) |
| Riverdale to Sedalia (Missouri) | 606.69 mi (976.37 km) |
| Riverdale to Sedro-Woolley (Washington) | 2,194.89 mi (3,532.33 km) |
| Riverdale to Seguin (Texas) | 843.16 mi (1,356.93 km) |
| Riverdale to Selden (New York) | 802.46 mi (1,291.44 km) |
| Riverdale to Selma (Alabama) | 171.44 mi (275.91 km) |
| Riverdale to Selma (California) | 1,990.54 mi (3,203.47 km) |
| Riverdale to Selma (Texas) | 862.43 mi (1,387.95 km) |
| Riverdale to Seminole (Florida) | 406.86 mi (654.78 km) |
| Riverdale to Seven Hills (Ohio) | 560.44 mi (901.93 km) |
| Riverdale to Seven Oaks (South Carolina) | 190.50 mi (306.57 km) |
| Riverdale to Severn (Maryland) | 576.22 mi (927.33 km) |
| Riverdale to Severna Park (Maryland) | 579.38 mi (932.41 km) |
| Riverdale to Sevierville (Tennessee) | 167.50 mi (269.57 km) |
| Riverdale to Seymour (Indiana) | 381.00 mi (613.16 km) |
