What are the most popular college majors in America? Business 19% Health Professions 11% Psychology 6% Biological Studies 6% Social Sciences/History 9% Engineering 5% This diagram provides a good representation of some of the most popular routes of studies for college students in America. This can be combined with other sets of data to have a better understanding of what the future generations have interests in. https://www.cnbc.com/2017/12/15/the-6-most-popular-collegemajors.html