Dialects of Serbo-Croatian
Kajkavian is spoken in North Croatia, including the capital Zagreb, as well as in a few enclaves in Austria, Hungary, and Romania. Though its speakers are ethnic Croats and Kajkavian is thus generally considered a dialect of Serbo-Croatian, it is closer to neighboring Slovene than it is to Chakavian or Shtokavian. The Kajkavian area of Croatia is bordered on the northwest by Slovene language territory. It is bordered on the east and southeast by Shtokavian dialects roughly along a line that was the former division between Civil Croatia and the Habsburg Military Frontier; in southwest along Kupa and Dobra rivers, it persisted in ancient (medieval) contact with Chakavian dialects.
Slovene Istria
According to the 2002 census, Slovene is spoken as the first language by 70.2% of the inhabitants of Slovenian Istria, Italian by 3.3%, and various forms of Serbo-Croatian, dominated by Croatian, by 16% of the population. The highest percentage of Italian speakers is in the municipality of Piran (7%), while the highest percentage of Croatian speakers is in Izola (31%). General population polls have shown that the majority of the population in Slovenian Istria conversational in several languages: Slovene, Italian, Croatian and English.