Austria
Austria's population was estimated to be nearly 9 million (8.83) in 2018 by the Statistik Austria. The population of the capital, Vienna, exceeds 1.8 million (2.6 million, including the suburbs), representing about a quarter of the country's population. It is known for its cultural offerings and high standard of living.
Catholic Church in Austria
For more than 50 years, however, the proportion of Catholics has discreased, primarily due to secularization and migration (from 89 % in 1961 to 75% in 2001). The number of Sunday churchgoers was around 6.8 percent (as percentage of the total Austrian population that is 594,524 churchgoers out of a total population of 8,772,865 in 2016).