| Code | Name | Region |
|---|---|---|
| HRKTV | Kastav | 8 |
| HRKGA | Kastel Gomilica | 17 |
| HRKAS | Kastel Sucurac | 7 |
| HRKST | Kastelir | 18 |
| HRKAT | Katarina | |
| HRKJV | Kijevo | |
| HRKNA | Klana | 8 |
| HRKLK | Klek | |
| HRKMN | Klimno | |
| HRKZA | Kneza | 17 |
| HRKNI | Knin | |
| HRKMZ | Komiza | |
| HRKOV | Koprivnica | 6 |
| HRKOP | Koprno | |
| HRKOR | Korcula | |
| HRKRM | Koromacno | |
| HRKOS | Kostrena | 8 |
| HRIZJ | Izabela Jug | |
| HRIZS | Izabela Sjever | |
| HRJAB | Jablanac | |
| HRJNC | Jablanovec | |
| HRJDR | Jadrija | |
| HRJJA | Janjina | 19 |
| HRJAS | Jasenovac | |
| HRJBO | Jastrebarsko | |
| HRJSA | Jelsa | |
| HRJZR | Jezerane | 9 |
| HRJSI | Josipdol | 4 |
| HRJUR | Jurdani | 8 |
| HRKAL | Kali | 13 |
| HRHKA | Kalinovica | 1 |
| HRKAM | Kamensko | 17 |
| HRKFR | Kanfanar | 7 |
| HRKLA | Kapelica | 7 |
| HRKPR | Kaprije | |
| HRKRS | Karasovici | 19 |
| HRHLE | Hrvatski Leskovac | |
| HRHNS | Hum Na Sutli | 2 |
| HRHVA | Hvar | 17 |
| HRIDA | Ida A | |
| HRIDB | Ida B | |
| HRIDC | Ida C | |
| HRIKA | Ika A | |
| HRIKB | Ika B | |
| HRIKJ | Ika Jz | |
| HRILO | Ilok | |
| HRIRI | Irina | |
| HRIST | Ist | |
| HRIVA | Ivana A | |
| HRIVB | Ivana B |