Austria Population with foreign nationality registered. Source 2017: Statistik Austria. [LINK]
Belgium Foreign population accounted for in the population registered annually. Source 2016: Eurostat, dados baseados na Direction Générale Statistique et Information Économique belge. [LINK]
Canada Foreign population registered in the Census. The data refers only to foreigners who have only one nationality. Foreigners with two or more nationalities are excluded from this register, in line with international statistics using the same criterion. The statistical institute also provides this second information. In 2016 there were about 25,500 individuals born in Portugal with a second nationality in addition to the Portuguese. Source 2016: Statistics of Canada, National Household Survey 2016: citizenship (5), place of birth (272), immigrant status and period of immigration (11), age groups (12) and sex (3) for the population in private households of Canada, provinces, territories, census metropolitan areas and census, agglomerations. [LINK]
China (Macau) Population with foreign nationality registered in the Censuses. Source 2016: Directorate of Statistics and Census Service - Government of Macao SAR [LINK]
Denmark Source 2018: Denmark Statistik. [LINK]
France The foreign population is counted in the annual census. The population census survey is collected by the municipalities and organized by the national statistical institute. Residents in France who are not French nationals are considered as foreigners. Foreigners with two or more nationalities are excluded from this register, in line with international statistics using the same criterion. The statistical institute also provides information that about 40% of the descendants of Portuguese immigrants (both parents) have dual nationality. For more information on the numbers see "Données complémentaires", here. Source 2014: Institut Nacional de la Statistique et des Études Économiques (INSEE): Répartition des étrangers par nationalité 2014. [LINK]
Germany Foreign population registered in the Central Register of Foreigners (Ausländerzentralregister). The number concerns individuals of foreign citizenship living in the country for at least three months and includes both those born outside Germany and those born in Germany. Source 2016: Statistisches Bundesamt Deutschland, Ausländische Bevölkerung, Fachserie 1 Reihe 2, 2016, tabelle 7, Ausländische Bevölkerung. [LINK]
Ireland Population with foreign nationality registered in the Census. Source 1992, 2003, 2006 and 2011: Central Statistics Office Ireland, census 1996, 2002, 2006 and 2011 (accessed in 29/06/2012). Source 2000, 2005, 2010, 2015 and 2017: United Nations Statistics Division (estimates). [LINK] [LINK]
Italy Foreign population counted in the municipal registry offices. Source 2017: Istituto Nazionale di Statistica: resident foreigners. [LINK]
Luxembourg Foreign population registered each year. Does not include visitors (less than three months) and cross-border workers. Source 2017: Le Portail des Statistiques du Luxembourg: population par sexe et par nationalité. [LINK]
Mozambique Foreign population registered in the Censuses. The data refers only to foreigners who have a single nationality. Foreigners with two or more nationalities are excluded in this register, in harmony with international statistics that use the same criteria. Source 2017: United Nations Statistics Division (estimates). [LINK]
Netherlands Foreign population in the population register. Data concerns 1st January of 2014. Source 2017: Centraal Bureau voor de Statistiek: population; sex, age and nationality, 1st January. [LINK]
Norway Foreign population in the population register. Excludes visitors (less than six months) and cross-border workers. Source 2018: Statistics Norway: population, by sex, age and citizenship. [LINK]
Spain Foreign population counted in the population register. The data includes all registrations of foreign citizens, regardless of their administrative status. Source 2016: Instituto Nacional de Estadística, Padron Municipal de habitantes: datos nacionales por CCAA y por provincias, población por nacionalidad, pais de nacimiento y sexo. [LINK]
Sweden Source 2017: Statistics Sweden. [LINK]
Switzerland Foreign population with residence permit. The concept of resident population refers, by the Swiss statistical institute, to permanent. Includes foreigners who remain in the country for more than 12 months and exclude temporary workers. Source 2016: Office Fédéral de la Statistique: population résidante permanente et non permanente selon le canton, le sexe, l'autorisation de résidence, la classe d'âge et la nationalité. [LINK]
United Kingdom Estimates of the foreign population based on the Annual Population Survey (APS) which is the Labour Force Survey (LFS) plus various sample boosts. Source 2016: Office for National Statistics, Annual Population Survey (APS) /Labour Force Survey (LFS), Population by country of birth and nationality, 1.4. Estimated overseas-born population resident in the United Kingdom by sex, by country of birth. [LINK]
United States Estimates of the foreign population based on the annual American Community Survey. Source 2016: US Census Bureau, Current Population Survey: Data Ferret, March supplement [select year], view variables, person variables, demographics, country of birth, person. [LINK]