| Potomac to Sprimont | 3,926.37 mi (6,318.88 km) |
| Potomac to Stabroek | 3,852.16 mi (6,199.45 km) |
| Potomac to Staden | 3,806.55 mi (6,126.05 km) |
| Potomac to Steenokkerzeel | 3,868.48 mi (6,225.71 km) |
| Potomac to Stekene | 3,842.13 mi (6,183.31 km) |
| Potomac to Strombeek-Bever | 3,862.31 mi (6,215.79 km) |
| Potomac to Temse | 3,850.96 mi (6,197.53 km) |
| Potomac to Ternat | 3,856.68 mi (6,206.72 km) |
| Potomac to Tervuren | 3,870.79 mi (6,229.43 km) |
| Potomac to Tessenderlo | 3,887.99 mi (6,257.12 km) |
| Potomac to Theux | 3,931.37 mi (6,326.92 km) |
| Potomac to Thuin | 3,874.54 mi (6,235.46 km) |
| Potomac to Tielt | 3,818.58 mi (6,145.42 km) |
| Potomac to Tienen | 3,888.74 mi (6,258.33 km) |
| Potomac to Tongeren | 3,910.67 mi (6,293.62 km) |
