a scale of 1600. The average ACT score range was 29–33 for the mid-50% range with a median ACT score of 31. In 2016, Rensselaer's freshman retention rate was 94% and admissions selectivity rating was 35th in the nation according to U.S. News & World Report. Since 2000, undergraduate enrollment grew by over 1,700 students, from 4,867 to 6,590 during calendar year 2018, and the full-time graduate enrollment declined from 1500 to 1,188.
Roughly 12% of students received the Rensselaer medal, a merit scholarship with a cumulative value of $100,000 for exceptional high school students in science and mathematics. 95% of full-time domestic undergraduate students receive either need-based or merit-based financial aid, averaging 85% of total financial need met per student. In 2018, Rensselaer invested over $140 million in financial aid and scholarships for students.
=== Gender ratio ===
RPI became coeducational in 1942. In 1966, the male-to-female ratio was 19:1, in the 1980s it reached as low as 8:1, and in the early …