Decline in Church Attendance: Decline since 1851, in 2015, 5% of adult population attended church. Number of churchgoers has more than halved since the 1960s. In 1983, 23% of adults were members of a religious organisation compared to only 1/2 in 2014. In 2013, less than 0.8 million people attended church. Church census figures here also reflect a long-term decline. Entry to high-performing faith schools has led to bogus baptisms.