According to the latest SEVIS update, Vietnamese enrollment stood at 19,541 as of April 1, 2013.  (Unlike the Open Doors data, which are always a year old and limited to institutions of higher  education, SEVIS information is up-to-date and all-inclusive.)  Vietnam
continues to lead the third tier of “top ten” schools (8th) with more students than Mexico (9th) or Brazil (10th).  The US is currently the world’s leading host of Vietnamese students, trading places with Australia, which had 17,164 Vietnamese students as of April 2013.