In short
In 2024, about 4.56 million people in Austria, roughly 49.6% of the population, were Catholic, according to the Austrian Catholic Church. Membership is falling steadily: the number of Catholics dropped from 4,733,085 in 2022 to 4,638,842 in 2023. Austria measures Mass attendance by counting churchgoers on two Sundays each year, and in 2024 those counts reached 366,210 and 378,797, up from 2022 but still below the roughly 500,000 seen before the pandemic. About 17% of self-identified Catholics say they attend Mass weekly.
- In 2024, about 4.56 million Austrians, roughly 49.6% of the population, were Catholic (Austrian Catholic Church).
- The number of Catholics fell from 4,733,085 in 2022 to 4,638,842 in 2023 (Austrian Catholic Church).
- The twice-yearly Sunday Mass headcount rose to 366,210 and 378,797 in 2024, up from 2022 but still below the roughly 500,000 seen before the pandemic (Austrian Catholic Church).
- About 17% of self-identified Catholics attend Mass weekly (Austrian Catholic Church).
Austria remains a majority-Catholic country, but the picture is shifting steadily. In 2024, about 4.56 million people, roughly 49.6% of the population, were Catholic, according to the annual church statistics of the Austrian Catholic Church. These are registered membership records rather than survey estimates. Austria is unusual in how it measures churchgoing: instead of relying on polls, the Church physically counts the people in the pews on two set Sundays each year, once in autumn and once around a spring feast. Those headcounts recovered somewhat in 2024 but still sit well below their pre-pandemic level. The figures below draw on the Austrian Catholic Church, the most authoritative source on membership and Mass attendance in Austria.
Key findings at a glance
| Metric | Value | Year | Source |
|---|---|---|---|
| Catholics in Austria | 4.56 million | 2024 | Austrian Catholic Church |
| Catholic share of the population | 49.6% | 2024 | Austrian Catholic Church |
| Catholics (earlier count) | 4,733,085 | 2022 | Austrian Catholic Church |
| Catholics (following year) | 4,638,842 | 2023 | Austrian Catholic Church |
| Autumn Sunday Mass headcount | 366,210 | 2024 | Austrian Catholic Church |
| Spring Sunday Mass headcount | 378,797 | 2024 | Austrian Catholic Church |
| Catholics attending Mass weekly | 17% | 2024 | Austrian Catholic Church |
How the Church counts Mass attendance
Austria measures churchgoing differently from most countries. Rather than asking people in a survey how often they attend, the Austrian Catholic Church counts the actual number of people in the pews on two designated Sundays each year, once in autumn and once in spring. The two counts are reported separately, which is why attendance for a single year appears as a pair of numbers rather than one.
On the autumn counting Sunday in 2024, 366,210 people attended Mass across Austria, according to the Austrian Catholic Church.
On the spring counting Sunday in 2024, 378,797 people attended Mass across Austria, according to the Austrian Catholic Church.
| Statistic | Value | Year | Source |
|---|---|---|---|
| Autumn Sunday Mass headcount | 366,210 | 2024 | Austrian Catholic Church |
| Spring Sunday Mass headcount | 378,797 | 2024 | Austrian Catholic Church |
| Catholics attending Mass weekly | 17% | 2024 | Austrian Catholic Church |
| Pre-pandemic Sunday attendance | about 500,000 | 2019 | Austrian Catholic Church |
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A slow membership decline
Catholic membership in Austria has been falling year on year. The Church still counts about 4.56 million members, but the total drops by tens of thousands each year through deaths, church exits, and fewer baptisms, and the Catholic share of the population is now close to half.
In 2024, about 4.56 million people in Austria, roughly 49.6% of the population, were Catholic, according to the Austrian Catholic Church.
The number of Catholics in Austria fell to 4,638,842 in 2023, down from 4,733,085 in 2022, according to the Austrian Catholic Church.
| Statistic | Value | Year | Source |
|---|---|---|---|
| Catholics in Austria | 4,733,085 | 2022 | Austrian Catholic Church |
| Catholics in Austria | 4,638,842 | 2023 | Austrian Catholic Church |
| Catholics in Austria | 4.56 million | 2024 | Austrian Catholic Church |
| Catholic share of the population | 49.6% | 2024 | Austrian Catholic Church |
A modest post-pandemic recovery
Sunday Mass attendance collapsed during the pandemic, when public worship was restricted. The 2024 headcounts show a partial recovery: both counting Sundays drew more people than in 2022. Even so, attendance remains well short of where it stood before the pandemic.
The 2024 Sunday Mass headcounts of 366,210 and 378,797 were up from 2022 but still below the roughly 500,000 seen before the pandemic, according to the Austrian Catholic Church.
About 17% of self-identified Catholics in Austria say they attend Mass weekly, according to the Austrian Catholic Church.
| Statistic | Value | Year | Source |
|---|---|---|---|
| Autumn Sunday Mass headcount | 366,210 | 2024 | Austrian Catholic Church |
| Spring Sunday Mass headcount | 378,797 | 2024 | Austrian Catholic Church |
| Pre-pandemic Sunday attendance | about 500,000 | 2019 | Austrian Catholic Church |
| Catholics attending Mass weekly | 17% | 2024 | Austrian Catholic Church |
How we compiled these statistics
Every number on this page is traceable to a primary source and dated to the year the data were collected. Membership totals and Mass-attendance headcounts come from the annual church statistics of the Austrian Catholic Church, which maintains registered membership records and counts churchgoers physically on two set Sundays each year. Where a single year reports two attendance figures, both counting Sundays are shown. Where data years differ, we use the most recent published year and label it.
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