The student population at Carnegie Mellon University is 15,888 (7,377 undergraduate and 8,511 graduate students) . The number of students has increased by 2,925 (22.56%) over the past decade.
- Class Level: The percentage of undergraduate students at CMU is 46.43% which is increased by 1,328 over last 10 years. The graduate student population increased by 1,597 and it has been increasing.
- Gender Breakdown: In 2025, there were 130 male students for every 100 female students, down from 156 in 2015.
- 554 students enrolled in online degree program exclusively and the number of online students has increased by 638.67% since 2015.
Student Population Changes
The average student population over the last 11 years is 14,436 where 15,888 students are attending the school for the academic year 2024-2025.
Total enrollment fluctuated between 2016 and 2025, with 7 year-over-year increases and 2 decreases. It peaked at 16,002 students in 2023 and was lowest at 12,963 in 2016. Overall, enrollment rose from 12,963 to 15,888 students, a net gain of 2,925 (22.6%).
The following table and chart illustrate the changes in student population by gender at Carnegie Mellon University since 2015.
Undergraduate Enrollment Changes
The average number of Undergraduate students over the last 11 years is 6,735 where 7,377 students are attending the Undergraduate school for the academic year 2024-2025. The following table and chart illustrate the changes in Undergraduate enrollment by attending status and gender at Carnegie Mellon University since 2015.
Graduate Enrollment Changes
The average number of Graduate students over the last 11 years is 7,701 where 8,511 students are attending the Graduate school for the academic year 2024-2025. The following table and chart illustrate the changes in Graduate enrollment by attending status and gender at Carnegie Mellon University since 2015.
Enrollment by Race/Ethnicity Changes
The percentage of white students is 17.65% and the percentage of black students is 3.11% at Carnegie Mellon University. 21.56% of enrolled students is Asian. Hispanic students comprise 6.21% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students decreased from 27.30% to 17.65%. Asian enrollment grew from 16.93% to 21.56%. Black student enrollment increased from 2.98% to 3.11%. Hispanic student representation expanded from 4.78% to 6.21%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.9162 which indicates that highly diverse. This increased from 0.8930 a decade ago, suggesting that racial diversity has improved.
The following table and chart illustrate the student population trends by race/ethnicity at Carnegie Mellon University over the past 11 years (2015-2025).
Distance Learning (Online Courses) Enrollment Changes
554 students are enrolled in online degree programs exclusively for the academic year 2024-2025, which is 3% of total students. The number of online students has increased 638.67% since 2015. The following table and chart illustrate the changes in the online student population by enrolled type at Carnegie Mellon University from 2015 to 2025.