List of All Postal Codes in Łomża County | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Voivodeship |
| 18-400 | Łomża | Podlaskie Voivodeship |
| 18-411 | Śniadowo | Podlaskie Voivodeship |
| 18-413 | Miastkowo | Podlaskie Voivodeship |
| 18-414 | Nowogród | Podlaskie Voivodeship |
| 18-416 | Zbójna | Podlaskie Voivodeship |
| 18-420 | Jedwabne | Podlaskie Voivodeship |
| 18-421 | Piątnica | Podlaskie Voivodeship |
| 18-423 | Przytuły | Podlaskie Voivodeship |
| 18-430 | Wizna | Podlaskie Voivodeship |