Demographic processes are the basis for making very important decisions, because they have a direct impact on socio-economic development. Understanding these processes is crucial for strategic considerations in many areas of state’s functioning. In the field of education, determination of the perspective and knowledge of demographic data is a basis for planning and organization of educational policy, and moving to a lower level of specific institutions (their number, size – opportunities and threats in the education market). In the era of demographic decline, the number of children and young people is the starting point for functioning of educational institutions, then colleges, workplaces, the number of people in childbearing age and so on. The chain of these relationships and linkages shows how important is the study and evaluation of demographic processes.