The report doesn’t delve into societal questions, such as the impact of a shift in the cultural or racial makeup of the U.S. It does encapsulate a range of research and data looking at benefits and costs of a population that has risen rapidly in recent decades.
The number of immigrants living in the U.S. has risen to 42.3 million, or about 13% of the population in 2014, from 24.5 million, or 9% of the population in 1995. The number of unauthorized immigrants roughly doubled during the period, reaching 11.1 million in 2014, according to the study.