The next day, the main force of the US Army followed. Previously, a self-employed civil government under Albrecht Gaiswinkler had formed in Bad Aussee, which kept order. Second Republic On July 1, 1948 Grundlsee was again back to Styria. From 1945 to 1955, it was part of the US occupation zone in Austria. Until 2011 Grundlsee was part of the political jurisdiction, Bad Aussee, which was converted from January 1, 2012 in a field office of the Lieutenant District Liezen. Within the framework of the Styrian municipal structural reform, a merger with the municipalities of Bad Aussee and Altaussee was under discussion for a few years. Since February 2013, however, it has been decided that the three communities will remain independent. Population Population Development and Structure The municipality is populated with a population density of 7.9 inhabitants per km ² comparatively sparsely (for comparison: Styria has 75.4 and Austria 104.6 inhabitants per km ²). The rough age of the Grundlsee population as of October 13, 2011 shows that 63.6% of Grundlsee residents are over 15 and under 65 years old. 11.6% of the population are younger, 24.8% older. The proportion of women in the population is 52.6%. According to the 2011 register, 7.9% of over-15s graduated from universities, colleges or academies (62.5% women), 11.6% had graduates(51.6% women) and 54.9% have completed an apprenticeship or vocational middle school (female share 47.8%). 25.4% of over-fifteen-year-olds have only a compulsory education, including 63.6% women. Origin, language and religion According to the 2011 registry, 95.9% of Grundlsee residents were Austrian citizens, 93.4% were born in Austria. 3.3% of the Grundlseer came from other EU states, 0.8% from non-EU states. In Grundlsee, as in the rest of the Salzkammergut, a variety of the Central or Donaubair dialect is spoken. In the 2001 census, 98.3% of the population reported German as the vernacular, 0.1 Burgenland-Croatian, 0.1% Croatian, 0.6% Serbian, 0.1% Hungarian, and 0.9% another language. According to the same census, 87.0% of Grundlsee Roman Catholics declared their religion as belonging to the religion, 4.4% Protestant, 0.4% Orthodox, 0.2% Israelite, 0.1% Islamic and 0.4% Other faiths. 6.5% of the population said they were not a confessor. With the Catholic parish church Grundlsee in the village Bräuhof and Messkapelle Gößl there are two official religious meeting rooms in the municipality. The area of the community Grundlsee is today part of the Catholic parish association of the "Ausseerland parishes"