for tenth overall by U.S. News & World Report for 2020, while BusinessWeek ranked its full-time MBA program first in the nation in 2014. The graduate programs of Duke's Pratt School of Engineering ranked 24th in the U.S. by U.S. News & World Report in its 2020 rankings.
== Student life ==
=== Student body ===
Duke's student body consists of 6,789 undergraduates and 9,991 graduate and professional students (as of fall 2021). The median family income of Duke students is $186,700, with 56% of students coming from the top 10% highest-earning families and 17% from the bottom 60% as of 2013. The New York Times described Duke in 2023 as the least economically diverse top-ranked college in the U.S.
=== Residential life ===
Duke requires its students to live on campus for the first three years of undergraduate life, except for a small percentage of second-semester juniors who are exempted by a lottery system. This requirement is justified by the administration as an effort to help students connect more closely with …