| Code | Name | Region |
|---|---|---|
| TRKIR | Kirklareli | 39 |
| TRKSH | Kirsehir | 40 |
| TRKZM | Kizilcahamam | 6 |
| TRKZE | Kiziltepe | 47 |
| TRKIZ | Kiziltoprak | 34 |
| TRKCS | Kocabas | 20 |
| TRKCO | Kocaeli | 41 |
| TRKCL | Kocarli | 9 |
| TRKN2 | Konak | 35 |
| TRKKL | Konakli | 31 |
| TRKYA | Konya | 42 |
| TRERG | Konya Ereglisi | 42 |
| TRKPR | Kopru | 21 |
| TRKFZ | Korfez | 41 |
| TRKOR | Korkuteli | 7 |
| TRKSK | Kosk | 9 |
| TRKNL | Kaynasli | 14 |
| TRASR | Kayseri | 38 |
| TRASF | Kayseri Free Zone | 38 |
| TRKZZ | Kazan | 6 |
| TRKZI | Kazanli | 33 |
| TRKKB | Kazimkarabekir | 70 |
| TRKAZ | Kazlicesme | 34 |
| TRKEB | Keban | 23 |
| TRKCB | Keciborlu | 32 |
| TRKFK | Kefken | 41 |
| TRKLS | Keles | 16 |
| TRKPS | Kemalpasa | 35 |
| TRKMR | Kemer | 7 |
| TRKEM | Kemerburgaz | 34 |
| TRKOY | Kemerkoy | |
| TRKST | Kepsut | 10 |
| TRKES | Kesan | 22 |
| TRKSL | Kestel | 16 |
| TRKIL | Kilis | |
| TRKNK | Kinik | 35 |
| TRKRH | Karahanli | 64 |
| TRKKY | Karakoy/istambul | 34 |
| TRKMN | Karaman | 70 |
| TRKRM | Karamursel | 41 |
| TRKPN | Karapinar | 42 |
| TRKRP | Karapurcek | 54 |
| TRKRS | Karasu | 54 |
| TRKRT | Karatas | 1 |
| TRKLU | Karpuzlu | 9 |
| TRKSY | Kars | 36 |
| TRJKS | Karsiyaka | 35 |
| TRKAR | Kartal | 34 |
| TRKPE | Kartepe | 41 |
| TRKAS | Kas | 7 |