Union Institute & University had a total enrollment of 787 students in 2022. The full-time enrollment at Union Institute & University is 336 students and the part-time enrollment is 451. This means that 42.7% of students enrolled at Union Institute & University are enrolled full-time.

The enrolled student population at Union Institute & University, both undergraduate and graduate, is 42.7% White, 23.4% Hispanic or Latino, 22.9% Black or African American, 3.05% Asian, 2.03% Two or More Races, 0.635% American Indian or Alaska Native, and 0.254% Native Hawaiian or Other Pacific Islanders.

Students enrolled at Union Institute & University in full-time Undergraduate programs are most commonly White Male (19.7%), followed by White Female (18.9%) and Hispanic or Latino Male (17.1%). Students enrolled in full-time Graduate programs are most commonly White Female (35%), followed by Black or African American Female (20.7%) and Black or African American Male (16.4%).