The article presents comparative analysis of the populations' age structure in the European Union countries in three years: 1950, 2005 and 2050. The Ward's method was applied to recognize states with similar age structures and to identify countries where demographic processes have analogous pattern. The ageing processes of various intensity was observed in all UE member states and its consequences will be perceptible in each country with different intensification. It was noticed, that countries of present UE, which in the year 1950 had relatively 'old' societies will be characterized by rather 'young' inhabitants one hundred years later. Moreover, those countries, in which inhabitants' average age in year 1950 was Iow, are subject to have populations with high average age in year 2050. It can provide evidence for demographic 'moderation' and 'sustainable' development of the European societies.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.