According to the 2011 Open Doors report on international academic mobility, there were 89,853 international students enrolled at America’s community colleges, a 3.2% decrease over the previous year.  (This is out of a total of 723,277 international students in the U.S. during the 2010/11 academic year.)  

Of that number, 9.9%, or 8,895 students, were Vietnamese.  This means that nearly 60% of all Vietnamese students in the US were studying at a community college, nearly all with the goal of transferring to a four-year school to complete a bachelor’s degree.   This was the same percentage as the previous year.  The only difference is that China displaced Vietnam by .2%. 

In my opinion, this trend will continue for the foreseeable future, given the lower cost and other reasons that explain the popularity of US community colleges in Vietnam and other countries.