Migration into the United States makes the country more religious, according to a recent Pew Research analysis on worldwide immigration. Roughly 70% of U.S. citizens embrace religious faith, but 87% of immigrants are part of a faith tradition.

The overwhelming majority of immigrants (70%) are Christian, mirroring the overall immigration to European countries. However, the rates of Christian migration are much lower (41%) for immigrants who immigrate to a European country from outside the continent. In addition to Christians, immigrants to the U.S. are Muslim (7%), Hindu (5%), Buddhist (3%) and Jewish (1%). Around 1% are from other faiths, and 13% consider themselves religiously unaffiliated.

From a global perspective, almost half (47%) of all people living outside their country of birth are Christian. Muslims are the next largest migrant group, at 29%. Of those living outside their birth country, 13% are religiously unaffiliated.

Twenty percent of all Jews live outside the country they were born in.

According to Pew’s analysis, the migration patterns of various religious groups have some things in common. Stephanie Kramer and Yunping Tong, the authors of the analysis, write: “For example, migrants frequently go to countries where their religious identity is already prevalent: Many Muslims have moved to Saudi Arabia, while Jews have gravitated toward Israel. Christians and religiously unaffiliated migrants have the same top three destination countries: the U.S., Germany and Russia.”

More information on the analysis and Pew’s methodology can be found here.