An estimated 800,000 to 1.2 million unauthorized immigrants lived in the United Kingdom in 2017, according to new Pew Research Center estimates based on the latest available data.
An estimated 500,000 to 700,000 unauthorized immigrants lived in Italy in 2017, up from 300,000 to 500,000 in 2014, according to new Pew Research Center estimates based on the latest available data.
An estimated 1.0 million to 1.2 million unauthorized immigrants lived in Germany in 2017, up from 500,000 to 600,000 in 2014, according to new Pew Research Center estimates based on the latest available data.
An estimated 300,000 to 400,000 unauthorized immigrants lived in France in 2017, up slightly from 200,000 to 300,000 in 2014, according to new Pew Research Center estimates based on the latest available data.