This doctorate thesis deals with the regional identity of the Croatian traditional region of Međimurje. It is a border region and thus in the historical and geographical context part of the sphere of influence of the neighboring Hungarian region. The inclusion of the region in the administrative and political organization of the Hungarian region contributed to the strengthening of the Hungarization process and efforts to separate the population of Međimurje from the Croatian home nation. The simultaneous involvement in the church territorial organization of the Zagreb diocese allowed the preservation of ethnic and religious homogeneity, and hence national and regional identity of the population. In the study of constituent elements of regional identity of the population of Međimurje it was observed that the dominant elements related to the work mentality of the population, Međimurje speech and elements of cultural heritage which corresponds to similar studies of other Croatian regions. This survey and semi-structured interviews proved the hypothesis that residents of Međimurje today have a very strong regional identity, which is equivalent to the national identity and for a third of the population proved even stronger than that. Regional and local levels of spatial identity are based on physiognomic division of Međimurje into Upper and Lower.