An estimated 870,000 Mexican migrants came to the U.S. between 2013 and 2018, while an estimated 710,000 left the U.S. for Mexico during that period. That translates to net migration of about 160,000 people from Mexico to the U.S., according to government data from both countries. In the period from 2009 to 2014, by contrast, about a million people left the U.S. for Mexico while 870,000 Mexicans made the reverse trip, for net migration of about 130,000 people from the U.S. to Mexico.

There are several potential reasons for the changing patterns of migration flows between the two nations. In the U.S., job losses during the Great Recession of 2007-2009 in industries in which immigrants tend to be heavily represented, may have pushed a large number of Mexicans to migrate back to Mexico. In addition, stricter enforcement of U.S. immigration laws may have contributed to the reduction in Mexican immigrants coming to the U.S. in the years leading up to 2013.