Saint Louis University had a total enrollment of 17,059 students in 2024. The full-time enrollment at Saint Louis University is 12,734 students and the part-time enrollment is 4,325. This means that 74.6% of students enrolled at Saint Louis University are enrolled full-time.

The enrolled student population at Saint Louis University, both undergraduate and graduate, is 50.7% White, 9% Asian, 7.61% Black or African American, 6.55% Hispanic or Latino, 3.93% Two or More Races, 0.135% American Indian or Alaska Native, and 0.041% Native Hawaiian or Other Pacific Islanders.

Students enrolled at Saint Louis University in full-time Undergraduate programs are most commonly White Female (33.8%), followed by White Male (22.1%) and Asian Female (9.96%). Students enrolled in full-time Graduate programs are most commonly White Female (22.5%), followed by White Male (12.7%) and Asian Female (3.97%).