St Lawrence University had a total enrollment of 1,991 students in 2024. The full-time enrollment at St Lawrence University is 1,941 students and the part-time enrollment is 50. This means that 97.5% of students enrolled at St Lawrence University are enrolled full-time.

The enrolled student population at St Lawrence University, both undergraduate and graduate, is 74.8% White, 5.37% Hispanic or Latino, 2.56% Black or African American, 2.11% Two or More Races, 1.71% Asian, 0.502% American Indian or Alaska Native, and 0.1% Native Hawaiian or Other Pacific Islanders.

Students enrolled at St Lawrence University in full-time Undergraduate programs are most commonly White Female (40.7%), followed by White Male (35.6%) and Hispanic or Latino Female (2.78%). Students enrolled in full-time Graduate programs are most commonly White Male (43.6%), followed by White Female (25.6%) and Native Hawaiian or Other Pacific Islanders Female (5.13%).