10 Most Expensive four-year colleges and universities based on the findings in the latest report by The Chronicle of Higher Education. Trinity College was ranked number eight among the priciest colleges with an annual tuition of $51,400 for the 2009-2010 academic year. The tuition saw a 5.7 percent increase from the 2008-2009 academic year when the annual tuition was $48,624. Trinity had the highest percent increase of any of the colleges or universities on the list.