Kajkavian
The major cities in northern Croatia are located in what was historically a Kajkavian-speaking area, mainly Zagreb, Koprivnica, Krapina, Križevci, Varaždin, Čakovec. The typical archaic Kajkavian is today spoken mainly in Hrvatsko Zagorje hills and Međimurje plain, and in adjacent areas of northwestern Croatia where immigrants and the Štokavian standard had much less influence. The most peculiar Kajkavian dialect "(Baegnunski)" is spoken in Bednja in northernmost Croatia. Many of northern Croatian urban areas today are partly Štokavianized due to the influence of the standard language and immigration of Štokavian speakers.
Serbian language in Croatia
Most schools with instruction in Serbian are located in Vukovar-Srijem and Osijek-Baranja County in the area of former Eastern Slavonia, Baranja and Western Syrmia where rights on education in minority languages were provided during the United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium based on the Erdut Agreement. Today with those schools there is also Kantakuzina Katarina Branković Serbian Orthodox Secondary School in Zagreb.