| Monroe to Southern Pines (North Carolina) | 749.69 mi (1,206.51 km) |
| Monroe to Southfield (Michigan) | 839.75 mi (1,351.45 km) |
| Monroe to Southgate (Michigan) | 826.76 mi (1,330.54 km) |
| Monroe to Southlake (Texas) | 296.34 mi (476.91 km) |
| Monroe to Spanaway (Washington) | 1,881.61 mi (3,028.16 km) |
| Monroe to Spanish Fork (Utah) | 1,205.31 mi (1,939.76 km) |
| Monroe to Spanish Lake (Missouri) | 445.71 mi (717.30 km) |
| Monroe to Spanish Springs (Nevada) | 1,610.17 mi (2,591.31 km) |
| Monroe to Sparks (Nevada) | 1,611.72 mi (2,593.81 km) |
| Monroe to Spartanburg (South Carolina) | 606.64 mi (976.29 km) |
| Monroe to Spearfish (South Dakota) | 1,040.33 mi (1,674.25 km) |
| Monroe to Speedway (Indiana) | 598.35 mi (962.96 km) |
| Monroe to Spencer (Iowa) | 753.13 mi (1,212.05 km) |
| Monroe to Spokane (Washington) | 1,687.17 mi (2,715.24 km) |
| Monroe to Spokane Valley (Washington) | 1,678.97 mi (2,702.04 km) |
