Countries that send the most college students to the U.S. 6: Vietnam The number of students from Vietnam studying in the U.S. has seen a 10-fold increase since the beginning of the century to reach 21,403. Vietnam has been in the top 10 countries of origin rankings since 2010. Previous Next 1 2 3 4 5 6 7 8 9 10 2018-01-03 admin Share ! tweet