Europe's unauthorized immigrant population is half the size of that in the U.S.
NEW: The United States has more than twice as many unauthorized immigrants (>10 million) as 32 European countries combined (<5 million)
Unauthorized immigrants represent a relatively small part of the population in Europe and the U.S. Less than 1% of Europe’s 500 million people were unauthorized immigrants in 2017, compared with 3% of 325 million in the United States
Italy, Greece, Germany and Sweden took the brunt. Into EU +60% unauthorized* migrants, into USA Southern border 95% "How European and U.S. unauthorized immigrant populations compare" - Pew Research Center *not granted asylum= economic migrants