| Portage to Lovington (New Mexico) | 1,160.63 mi (1,867.85 km) |
| Portage to Lowell (Indiana) | 113.25 mi (182.27 km) |
| Portage to Lowell (Massachusetts) | 727.57 mi (1,170.92 km) |
| Portage to Lower Burrell (Pennsylvania) | 324.39 mi (522.06 km) |
| Portage to Lowes Island (Virginia) | 483.55 mi (778.19 km) |
| Portage to Lubbock (Texas) | 1,067.49 mi (1,717.96 km) |
| Portage to Lufkin (Texas) | 904.70 mi (1,455.97 km) |
| Portage to Luling (Louisiana) | 890.05 mi (1,432.39 km) |
| Portage to Lumberton (North Carolina) | 632.04 mi (1,017.17 km) |
| Portage to Lumberton (Texas) | 953.58 mi (1,534.63 km) |
| Portage to Lutz (Florida) | 987.37 mi (1,589.02 km) |
| Portage to Lynbrook (New York) | 625.91 mi (1,007.30 km) |
| Portage to Lynchburg (Virginia) | 474.47 mi (763.59 km) |
| Portage to Lynden (Washington) | 1,823.29 mi (2,934.29 km) |
| Portage to Lyndhurst (Ohio) | 216.09 mi (347.77 km) |
