The accession of the new Member States to the European Union constituted a major challenge for the societies of both the 'old' and the 'new' Europe. After five years, it seems reasonable to investigate how the feeling of attachment to the community institutions has been evolving. The present paper utilises Eurobarometer data in order to compare social attitudes with respect to the EU in Central and Eastern Europe. The following countries are assumed to fall under this label: Lithuania, Latvia, Estonia, Poland, Czech Republic, Slovakia, Hungary. This selection is justified by the conviction that in the cases of Romania, Bulgaria and Slovenia we are dealing with South-Eastern Europe, whereas the two remaining New Member States, i.e. Cyprus and Malta, constitute separate cases altogether. The analyses have been focused on two distinct aspects of cross-country comparisons. At firsts, the indicators of attachment to the EU aggregated for all the particular countries have been examined in the context of the other macro-scale indicators. Secondly, the country-internal determinants of the previously diagnosed macro-indicators have been analysed.