As in other industrialized countries population structure has changed fundamentally during 20th century. The number and proportion of children and young people (persons aged below 19) has fallen in many regions, while the number and percentage of persons of retirement age (65 years and above) has increased strongly. The population of working age persons (aged 20 to below 64) has risen strongly in recent years, particularly in urban areas, primarily due to immigration from within Austria and from abroad. In contrast, rural areas experienced a fall in the population of working age to varying extents.
On 1 January 2011, there were 1.731 million children and young people (aged 0 to 19) living in Austria, equating to one fifth (20.6%) of the total population. The highest percentages were found in the federal provinces of Vorarlberg (23.4%), Upper Austria (21.8%) and Tyrol (21.5%). This can be attributed on the one hand to the fertility rate, which lies above the federal average and on the other hand to the continuing high immigration of younger persons and families from abroad. Some 5.194 million inhabitants (61.8% of the total population) were of working age (between 20 and 64) on 1 January 2011. With 63.8% of inhabitants in this age group, only the federal capital, Vienna, was above the national average. On the survey date, approximately 1.480 million people were aged 65 and above, corresponding to 17.6% of the total population. Analysed by federal provinces, the percentage of older persons in Burgenland (19.5%), Carinthia (19.2%) and in Styria (18.7%) was above the national average, while the percentage in Tyrol (16.2%) and Vorarlberg (15.3%) was below the national average.
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