In 2015, 3.5 million students over the age of 30 were enrolled in higher education.
This chart shows the age distribution of undergraduate students by the type of institution in which the students were enrolled in 2015. While the plurality of students at both four-year and public two-year institutions are between the ages of 18 and 24, students at for-profit institutions tend to be older: almost half are age 30 or older. Nonetheless, more than 20 percent of undergraduate students at four-year institutions are over the age of 24.
Read more: “Eight Economic Facts on Higher Education“