AUSTRIA

Figures on this page present estimates of Austria’s irregular migration population between 2008 and 2023 and corresponding assessments of their quality, which were compiled and the carried out, respectively, under the MIrreM project.

Estimates can be viewed as a number, as a share of the total population and as a share of the foreign-born population who are not covered by free movement policies (i.e., in Europe those who were born outside of the Schengen zone and in the UK and Ireland, those who were born outside of the Common Travel Area)see more

ESTIMATED NUMBER OF IRREGULAR MIGRANTS BY YEAR

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ESTIMATED PERCENTAGE OF IRREGULAR MIGRANTS BY YEAR

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DATA TABLE
Year Quality Quality score Low estimate High estimate Total population FB population Low estimate as % of total population High estimate as % of total population Low estimate as % of FB population High estimate as % of FB population Population group Estimate source Estimate URL Total pop source Total pop URL FB pop source FB pop URL
2008 High 11.5 18,439 54,064 8,307,989 744,070 0.22% 0.65% 2.48% 7.27% All irregular migrants Kovacheva and Vogel, 2009 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2023 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2023 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2022 Medium 10 62,000 62,000 8,978,929 997,838 0.69% 0.69% 6.21% 6.21% Non-registered people resident for more than 12 months in Austria Kovacheva and Vogel, 2010 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2024 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2024 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2017 Medium 9 100,000 200,000 8,772,865 909,409 1.14% 2.28% 11.00% 21.99% All irregular migrants (including asylum-seekers) Kovacheva and Vogel, 2011 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2025 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2025 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2016 Medium 9 100,000 200,000 8,700,471 874,160 1.15% 2.30% 11.44% 22.88% All irregular migrants (including asylum-seekers) Kovacheva and Vogel, 2012 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2026 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2026 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2015 Medium 9 100,000 200,000 8,584,926 801,565 1.16% 2.33% 12.48% 24.95% All irregular migrants (including asylum-seekers) Kovacheva and Vogel, 2013 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2027 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2027 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2017 Low 8 100,000 8,772,865 909,409 1.14% 11.00% All irregular migrants (excluding asylum-seekers) Kovacheva and Vogel, 2014 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2028 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2028 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2016 Low 8 100,000 8,700,471 874,160 1.15% 11.44% All irregular migrants (excluding asylum-seekers) Kovacheva and Vogel, 2015 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2029 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2029 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2015 Low 8 100,000 8,584,926 801,565 1.16% 12.48% All irregular migrants (excluding asylum-seekers) Kovacheva and Vogel, 2016 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2030 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2030 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2014 Low 8 100,000 8,507,786 771,395 1.18% 12.96% All irregular migrants (excluding asylum-seekers) Kovacheva and Vogel, 2017 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2031 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2031 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2014 Low 8 100,000 8,507,786 771,395 1.18% 12.96% All irregular migrants (including asylum-seekers) Kovacheva and Vogel, 2018 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2032 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2032 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2013 Low 7.5 65,000 183,000 8,451,860 790,091 0.77% 2.17% 8.23% 23.16% All irregular migrants Kovacheva and Vogel, 2019 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2033 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2033 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
2015 Low 4 95,000 254,000 8,584,926 801,565 1.11% 2.96% 11.85% 31.69% All irregular migrants Kovacheva and Vogel, 2020 https://irregular-migration.net/wp-content/uploads/2021/06/WP4Annex3_CalculationTable-EUestimate2008_Dec09.xls EUROSTAT (Table migr_pop3ctb), 2034 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en EUROSTAT (Table migr_pop3ctb), 2034 https://ec.europa.eu/eurostat/databrowser/view/migr_pop3ctb__custom_14974967/default/table?lang=en
METHODOLOGY

Figures on this page present estimates of Austria’s irregular migration population between 2008 and 2023 and corresponding assessments of their quality, which were compiled and the carried out, respectively, under the MIrreM project. 

Estimates can be viewed as a number, as a share of the total population and as a share of the foreign-born population who are not covered by free movement policies (i.e., in Europe those who were born outside of the Schengen zone and in the UK and Ireland, those who were born outside of the Common Travel Area). 

The Estimate Quality brings together appraisals of an estimate’s accessiblity, documentation, methodology, reliabilty and underlying data into an aggregate score and band. 

  • Estimates that scored between 4 and 8 points were graded as low quality
  • Estimates that received scores greater than 8 points and as high as 10 points were appraised as medium quality
  • Estimates that exceeded valuations of 10 points (up to the maximum score of 12 points) were classified as high quality. 

For more information on how these data were compiled and assessed, please refer to the MIrreM Working Paper, The Irregular Migrant Population of Europe (Kierans and Vargas-Silva, 2024).

Access the full dataset, which includes the assessments of the five quality critera that comprise the aggregate quality score for Austria and all other countries covered my the MIrreM project.

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