The objective of this paper is to examine religiosity in a post-secular society, the case of Sweden. The study focuses the complex concept of secularization in four dimensions: religion and its institutions, individual religiosity, integration between religion and state, and religious information processing of political opinion among individuals. The data are surveys of the adult Swedish population as early as 1942 until 2006 together with official statistics collected by Statistics Sweden and Church of Sweden from 1920 to present. The result shows that people in post-secular generations (born after 1960) express a stronger interest in religion than people born in the 1940s and 1950s. However, this is a psychological interest. Between these generations, there is no report of changed religious behavior.