The aim of this study examining the repercussions of long-term (2010-2050) population projections on Turkish education system is to guide the education administrators about how to benefit from the data in the education field more effectively provided through the demography and contribute to build up a data driven management culture in education sector. The target group of the study involves the education policymakers, educational planners and educational administrators in every level from school principals to executives. When the last decade of education in Turkey is examined, significant developments have been observed. For example, pre-school education has quadrupled and there has been growth over 60 percent in higher education. Despite the growths, the enrolment rates especially in pre-school and higher education are still far from the developed countries. The long-term projections, organized considering the goals in national and international policy documents and the developments and trends with the opportunity to be created via the decrease in school-age population, indicate that significant quantitative developments will occur in pre-school, secondary school and higher education levels in the period of 2010-2023. In this regard, within the frame of assumption concerning the continuation of existing trends, the rise of enrolment rates to %70 in pre-school education and to %60 in higher education are expected.