The paper analyzes demographic trends in Croatia. For better understanding, the world population and human mobility, population demographics, world demographic trends, world population by regions through the trend of population growth, world migration, and population aging were first analyzed. After that, we talked about demographic trends in the European Union, with an emphasis on the analysis of the trend of population aging, and migration in Europe. The middle part of the paper was focused on the analysis of the population in Croatia from the aspect of movement dynamics and analysis of demographic trends. The notion of demographic transition, dynamics of population movement through the implementation of pronatality policy due to declining and aging trends, migration trend in Croatia in the 21st century, ie the growth trend of the number of emigrants and immigrants, the growing mortality rate with an increase in the number of religious marriages, and an increase in the number of divorces. The last subchapters dealt with the question of whether Croatia's demographic trends follow the demographic trends of the European Union, and with the analysis of the impact of the Covid 19 virus epidemic on demographic trends in Croatia.