| Potomac to Linslade | 3,634.82 mi (5,849.68 km) |
| Potomac to Lisburn | 3,374.12 mi (5,430.12 km) |
| Potomac to Liskeard | 3,508.57 mi (5,646.51 km) |
| Potomac to Litherland | 3,511.03 mi (5,650.45 km) |
| Potomac to Little Bookham | 3,660.54 mi (5,891.06 km) |
| Potomac to Little Hulton | 3,532.98 mi (5,685.78 km) |
| Potomac to Little Lever | 3,534.30 mi (5,687.91 km) |
| Potomac to Littleborough | 3,543.48 mi (5,702.68 km) |
| Potomac to Littlehampton | 3,664.79 mi (5,897.91 km) |
| Potomac to Littleover | 3,581.28 mi (5,763.51 km) |
| Potomac to Littleport | 3,662.90 mi (5,894.87 km) |
| Potomac to Liverpool | 3,512.50 mi (5,652.82 km) |
| Potomac to Liversedge | 3,558.35 mi (5,726.62 km) |
| Potomac to Livingston | 3,450.25 mi (5,552.64 km) |
| Potomac to Llanelli | 3,497.25 mi (5,628.28 km) |
