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Our goal is to provide academics, governments, international organisations and NGOs with information for research and evidence-based evaluation of public policies.

We do not offer information or counselling to individuals interested in acquiring the citizenship of a particular country and we do not encourage experts in our network to answer such requests.

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"European Citizenship is meant to be complementary to Member State nationality. The one cannot be studied or understood without the other. Now the resource exists to realize that imperative"

Joseph Weiler, New York University

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"The EUDO observatory is a brilliant tool for anyone concerned about Europe's multifarious approaches to the concept of nationality and citizenship. Academic study, political debate and legal certainty are all helped by this observatory"

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Citizenship Statistics

From this page you can access statistics on the acquisition of citizenship in countries covered by EUDO CITIZENSHIP.

For each country, insofar as these are available, you can find aggregate data from 1985 onwards on the following characteristics of acquisitions of citizenship: total number of acquisitions, mode of acquisition (procedure), citizenship of origin, country of birth, region of residence, sex, age, decisions on applications for naturalisation.

These data are summarised in charts on each country statistics page and can be downloaded in spreadsheet format for further analysis. Users can also export comparative tables, with a selection of countries, years, and acquisition characteristics.

The data were compiled by Maarten Vink and Deborah Werner, with assistance of Sara Wallace Goodman and Roxana Barbulescu.

Click here to visit the EUDO CITIZENSHIP Statistics database.

A forthcoming EUDO CITIZENSHIP Comparative Report on Citizenship Acquisition Statistics by Maarten Vink and Deborah Werner discusses the availability and limits of comparative European statistics and will provide an overview of trends across Europe.

For an earlier analysis of citizenship statistics in the EU-15 you can download here a 2006 book chapter by Harald Waldrauch based on data collected in the NATAC project.

The PROMINSTAT project provides a useful inventory of available statistics on migration and integration of immigrants, which includes also naturalisation statistics.

EUROSTAT collects data on acquisition of citizenship in all EU member states, EFTA and EU candidate countries, and provides a breakdown by age, sex and previous citizenship.

You can access here the EUROSTAT online database on acquisition of citizenship, the citizenship section in Eurostat’s "Statistics Explained", a short analytical publication on citizenship statistics.