Illustration of a group of migrants walking across a landscape with American stars and stripes.

How Does Immigration Affect the United States?

UC Davis experts study immigration in relation to jobs, crime and disease.

'According to the U.S. Census Bureau, immigrants made up 13.9% of the total population in 2022. Among them are highly skilled workers who fill critical gaps in high tech industries as well those who construct the buildings in which we live and who plant and harvest the foods we eat. Some arrive seeking greater opportunity while others bring hope simply for a life free from persecution and poverty.

In every country and context, immigration is as much a force for shaping society as it is a flashpoint for anger and prejudice. At the same time, research shows that immigrants make important contributions to their new countries.

“Immigrants are part of the fabric of a country’s economy and society,” said Giovanni Peri, director of the Global Migration Center and a professor of economics at UC Davis. “We want to bring more information, clarity, facts and discussion to shine the light that immigrants are human beings who bring assets with them to their new countries.”'

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