| Code | Name | Region |
|---|---|---|
| PLKZD | Kalwaria Zebrzydowska | MA |
| PLKMS | Kamien Krajenski | 4 |
| PLKAO | Kamien Pomorski | 32 |
| PLKKW | Kamienica Krolewska | PM |
| PLKSA | Kamienica Szlachecka | 22 |
| PLKMC | Kamieniec | 30 |
| PLKAW | Kamieniec Wroclawski | 2 |
| PLKMZ | Kamieniec Zabkowicki | 2 |
| PLKAG | Kamienna Gora | 2 |
| PLKAM | Kamienna Gora | 22 |
| PLKMI | Kamiensk | 10 |
| PLKAN | Kamionka | 24 |
| PLKPS | Kampinos | 14 |
| PLKYK | Kamyk | 24 |
| PLKCZ | Kanczuga | 18 |
| PLJEW | Jelowa | 16 |
| PLJKA | Jerka | WP |
| PLJWZ | Jerzmanowice | 12 |
| PLJEZ | Jezewo | 4 |
| PLJZI | Jeziorany | 28 |
| PLJZY | Jeziorzany | 6 |
| PLZW2 | Jezow | 10 |
| PLJZS | Jezow Sudecki | 2 |
| PLJEO | Jezowe | 18 |
| PLJLW | Jodlownik | 2 |
| PLOWO | Jonkowo | 28 |
| PLJDO | Jordanow | MA |
| PLJOS | Jordanow Slaski | 2 |
| PLJOE | Jozefoslaw/piaseczno | MZ |
| PLJOZ | Jozefow | MZ |
| PLJOW | Jozefow (powiat Otwocki) | 14 |
| PLJUC | Juchnowiec Koscielny | 20 |
| PLJRT | Jurata | |
| PLJTO | Jutrosin | 30 |
| PLZKC | Kaczory | 30 |
| PLJKS | Jaszkowa Dolna | 2 |
| PLJWY | Jawczyce | 14 |
| PLJWR | Jawor | 2 |
| PLJRK | Jawornik | 12 |
| PLJWK | Jawornik Polski | 18 |
| PLJWE | Jaworze | |
| PLJAW | Jaworzno | |
| PLJWO | Jaworzno | |
| PLJWS | Jaworzyna Slaska | 2 |
| PLJED | Jedlicze | 18 |
| PLJDZ | Jedlina-zdroj | 2 |
| PLJDL | Jedlinsk | MZ |
| PLOZT | Jedlno | LD |
| PLOZS | Jednorozec | MZ |
| PLJZW | Jedrzejow |