Lamar University had a total enrollment of 17,772 students in 2024. The full-time enrollment at Lamar University is 11,978 students and the part-time enrollment is 5,794. This means that 67.4% of students enrolled at Lamar University are enrolled full-time.

The enrolled student population at Lamar University, both undergraduate and graduate, is 35.6% White, 28.9% Black or African American, 20.9% Hispanic or Latino, 3.53% Asian, 1.3% Two or More Races, 0.293% American Indian or Alaska Native, and 0.0731% Native Hawaiian or Other Pacific Islanders.

Students enrolled at Lamar University in full-time Undergraduate programs are most commonly White Female (21.7%), followed by Black or African American Female (20.3%) and White Male (16.2%). Students enrolled in full-time Graduate programs are most commonly White Female (24.4%), followed by Black or African American Female (20.7%) and Hispanic or Latino Female (14.9%).