The City of Zagreb is the capital city of the Republic of Croatia. The Cityof Zagreb has a special position within Croatian society because it has a position of a regional self-government unit -a County, as well as the position of The City. Mentioned two positions, a City and a Country, in Croatian society imply two different management statuses. Also, according to the Law of the City of Zagreb, Zagreb performs on the area of state administration, which puts it in a specific position compared to the rest of the Cities within Croatia. The goal of the research is to analyze the position and relationship of the City of Zagreb, the state center, with the periphery, the rest of the Croatian society, based on Laws and Strategic Documents. As part of this research, a qualitative methodology will be used, i.e. a Case Study of the City of Zagreb by analyzing the content of Strategic Documents and Laws in order to conclude on the centralization of the Republic of Croatia. The hypothesis of this research is that the Republic of Croatia is a highly centralized state in the City of Zagreb, therefore it is important to investigate the position and relationship of the City of Zagreb to the periphery in order to detect problems in the management of the state. Also, it is important to investigate what implications the relationship between the center and the periphery has on Croatian society.