Religious denomination

Share of population professing to a religious community

77.6 %
Sunk compared to 2001

Withdrawels among religious communities that are subject to church contributions

64 414
Sunk -13.4 % compared to 2019

Admissions and readmissions among religious communities that are subject to church contributions

4 649
Sunk -19,5 % compared to 2019


Information on religious affiliation for the total population is available from 1951 to 2001 as self-declaration from the censuses. Since the change of the censuses to register-based enumeration, this characteristic is no longer collected within the framework of the census. In 2021, Statistics Austria conducted a voluntary survey on "Religious affiliation of the population in private households" on behalf of the Federal Chancellery, which, after estimating the religious affiliation of the institutional population, supplements the time series since 1951.

In addition, Statistics Austria records the number of withdrawals as well as admission and readmission among the religious communities in Austria that are subject to church contributions (Roman Catholic, Protestant AB and HB, Old Catholic). These statistics on changes of religion are based on a survey of the religious communities and are available as a time series from 2001 and also for the federal provinces from 2011.

Graphs, Tables, Maps


Population 1951 to 2021 by selected religion or church and religious community – absolute in thousand and in percent (table)

S: STATISTICS AUSTRIA, Population Censuses 1951 to 2001. 2021: Additional questions at the Microcensus Labour Force Survey on "Religious Affiliation", 1st to 4th quarter 2021. Compiled on 05 May 2022 – "Other religion, denomination or religious community": Up to 1971 including Islamic, up to 1991 including Orthodox. – The following applies to the 2021 sample survey: Values with less than extrapolated 6 000 persons are highly subject to random fluctuations. – In 2021, the question on "religion" was weighted to compensate for "don't know" and "no information", so there are no "unknown" cases.

S: STATISTICS AUSTRIA. Compiled on 12 October 2021. – Total value includes till 2009 other religious affiliation.

Date PDF download
2022-05-25 file Religious affiliation 2021: three quarters profess a religion
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