Sources of data
Sources of data
Religion was only surveyed in the Austrian census until 2001. From then on, the official census was replaced by the compilation of registers and religious affiliation is no longer surveyed (see the Federal Law on register counting (Registerzählungsgesetz), BGBI. I No. 33/2006, subsequently amended by BGBI. I No. 125/2009. Some religious communities publish data on their members, but this is an incomplete data source. In 2021, Statistics Austria conducted a voluntary survey on “Religious affiliation of the population in private households”, which, after estimating the religious affiliation of the total population, now supplements the time series since 1951. These most recent numbers show the following affiliations: 55,2% Catholic, 8,3% Islamic, 4,9% Christian Orthodox, 3,8% Protestant, 5,5% affiliated with other religious traditions (e.g. Buddhism, Judaism, other Christian Churches, etc.) and 22,4% not affiliated.
5 September 2023 Astrid Mattes
