| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Łady Borowe | city | Poland | 53.07 | 22.27 | 410 | 859 | |
| Łady Polne | city | Poland | 53.07 | 22.28 | 426 | 1057 | |
| Łamane Grądy | city | Poland | 53.65 | 22.58 | 442 | 1846 | |
| Ławsk | city | Poland | 53.48 | 22.28 | 465 | 2629 | |
| Łazarze | city | Poland | 53.70 | 22.62 | 459 | 1875 | |
| Łazy | city | Poland | 52.85 | 22.45 | 495 | 3653 | |
| Łaś Toczyłowo | city | Poland | 53.22 | 22.62 | 383 | 1798 | |
| Łebki Duże | city | Poland | 53.52 | 22.17 | 721 | 2737 | |
| Łebki Wielkie | city | Poland | 53.52 | 22.17 | 721 | 2737 | |
| Łempica | city | Poland | 52.68 | 22.67 | 482 | 3235 | |
| Łempice | city | Poland | 52.68 | 22.67 | 482 | 3235 | |
| Łempice | city | Poland | 53.53 | 22.28 | 479 | 3594 | |
| Łochtynowo | city | Poland | 53.15 | 22.02 | 403 | 43453 | |
| Łoje | city | Poland | 53.38 | 22.45 | 383 | 2181 | |
| Łoje Awissa | city | Poland | 53.38 | 22.45 | 383 | 2181 | |
| Łojki | city | Poland | 53.57 | 22.50 | 469 | 1546 | |
| Łomża | city | Poland | 53.18 | 22.08 | 314 | 68034 | |
| Łomża Stara | city | Poland | 53.15 | 22.12 | 449 | 28097 | |
| Łomża Stara | city | Poland | 53.17 | 22.12 | 364 | 34535 | |
| Łomża Stara-Zosin | city | Poland | 53.13 | 22.15 | 426 | 3900 | |
| Łomżyca | city | Poland | 53.18 | 22.05 | 301 | 70853 | |
| Łopienie | city | Poland | 52.88 | 22.73 | 488 | 2897 | |
| Łopienie Jeże | city | Poland | 52.87 | 22.73 | 482 | 2892 | |
| Łopienie Markowizna | city | Poland | 52.88 | 22.73 | 488 | 2897 | |
| Łopienie Pamięciaki | city | Poland | 52.88 | 22.73 | 488 | 2897 | |
| Łopienie Ruś | city | Poland | 52.88 | 22.73 | 488 | 2897 | |
| Łopienie Szelągi | city | Poland | 52.88 | 22.72 | 479 | 2916 | |
| Łopienie Zyski | city | Poland | 52.88 | 22.73 | 488 | 2897 | |
| Łopienite Szlasy | city | Poland | 53.08 | 22.53 | 456 | 2363 | |
| Łopienite Śliwowo | city | Poland | 53.08 | 22.52 | 446 | 2371 | |
| Łopuchowo | city | Poland | 53.18 | 22.67 | 413 | 2394 | |
| Łosewo | city | Poland | 53.58 | 22.47 | 436 | 7787 | |
| Łosiewo | city | Poland | 53.58 | 22.47 | 436 | 7787 | |
| Łosiewo | city | Poland | 53.35 | 21.90 | 485 | 7184 | |
| Łubiane | city | Poland | 53.48 | 22.23 | 557 | 2442 | |
| Łuby Kiertany | city | Poland | 53.15 | 21.88 | 393 | 3046 | |
| Łuby Kurki | city | Poland | 53.15 | 21.87 | 396 | 3013 | |
| Łuniewo Duże | city | Poland | 52.75 | 22.47 | 459 | 3113 | |
| Łuniewo Małe | city | Poland | 52.73 | 22.47 | 465 | 3132 | |
| Łuniewo Wielkie | city | Poland | 52.75 | 22.47 | 459 | 3113 | |
| Łupianka Stara | city | Poland | 53.05 | 22.87 | 429 | 10402 | |
| Łękowo | city | Poland | 53.62 | 22.47 | 416 | 27619 | |
| Łętownica | city | Poland | 52.87 | 22.20 | 446 | 2166 | |
| Łętowo | city | Poland | 53.02 | 22.35 | 469 | 2352 | |
| Łętowo-Dąb | city | Poland | 53.02 | 22.35 | 469 | 2352 |