Postal codes in Croatia are 5 digit numeric. There are 20 two digit zones defined. Zagreb City and Zagreb County have one, each other first level administrative country subdivision, i.e. one of the counties of Croatia, has its own range. When sending internationally, it's advisable to prefix the postal code with the ISO 3166-1 alpha-2 code for Croatia (for example: HR-10xxx).
From the 10 possible 1 digit ranges only 5 are assigned: 1 Zagreb region, 2 Southern Croatia, 3 Eastern Croatia, 4 Central Croatia except Zagreb region, 5 Western Croatia.
In the range 1xxxx only one two digit range namely 10xxx is assigned, the maximum of subranges exists is in the 4xxxx range with 7 ranges.
Range Location 10xxx City of Zagreb and Zagreb County 20xxx Dubrovnik-Neretva County 21xxx Split-Dalmatia County 22xxx Šibenik-Knin County 23xxx Zadar County 31xxx Osijek-Baranja County 32xxx Vukovar-Srijem County 33xxx Virovitica-Podravina County 34xxx Požega-Slavonia County 35xxx Brod-Posavina County 40xxx Međimurje County 42xxx Varaždin County 43xxx Bjelovar-Bilogora County 44xxx Sisak-Moslavina County 47xxx Karlovac County 48xxx Koprivnica-Križevci County 49xxx Krapina-Zagorje County 51xxx Primorje-Gorski Kotar County 52xxx Istria County 53xxx Lika-Senj County
Three cities have a postal code with 4 zeros: 10000 Zagreb, 20000 Dubrovnik, 40000 Čakovec.
Range City County 10000 Zagreb Zagreb County 20000 Dubrovnik Dubrovnik–Neretva County 21000 Split Split-Dalmatia County 22000 Šibenik Šibenik-Knin County 23000 Zadar Zadar County 31000 Osijek Osijek-Baranja County 32000 Vukovar Vukovar-Syrmia County 33000 Virovitica Virovitica–Podravina County 34000 Požega Požega-Slavonia County 35000 Slavonski Brod Brod–Posavina County 40000 Čakovec Međimurje County 42000 Varaždin Varaždin County 43000 Bjelovar Bjelovar–Bilogora County 44000 Sisak Sisak–Moslavina County 47000 Karlovac Karlovac County 48000 Koprivnica Koprivnica-Križevci County 49000 Krapina Krapina-Zagorje County 51000 Rijeka Primorje-Gorski Kotar County 52000 Pazin Istria County 53000 Gospić Lika-Senj County
Old system
After independence, Croatia went on to use the 5 digit numeric postal codes once assigned to the Socialist Republic of Croatia (within SFR Yugoslavia). The system had assigned the ranges 4xxxx and 5xxxx to the republic.
See also List of postal codes in Croatia ISO 3166-2:HR NUTS of Croatia Telephone numbers in Croatia
References
External links https://web.archive.org/web/20070207042037/http://www.posta.hr/main.aspx?id=148&trazi=1&vrsta=2 https://web.archive.org/web/20110720064604/http://www.t-com.hr/privatni/telefon/pozivi/pozivni/medumjesni.asp telephone prefix map