University of Northern Iowa had a total enrollment of 9,278 students in 2024. The full-time enrollment at University of Northern Iowa is 7,382 students and the part-time enrollment is 1,896. This means that 79.6% of students enrolled at University of Northern Iowa are enrolled full-time.

The enrolled student population at University of Northern Iowa, both undergraduate and graduate, is 82.9% White, 5.76% Hispanic or Latino, 3.33% Black or African American, 2.73% Two or More Races, 1.61% Asian, 0.183% American Indian or Alaska Native, and 0.0862% Native Hawaiian or Other Pacific Islanders.

Students enrolled at University of Northern Iowa in full-time Undergraduate programs are most commonly White Female (52%), followed by White Male (31.4%) and Hispanic or Latino Female (3.83%). Students enrolled in full-time Graduate programs are most commonly White Female (58.9%), followed by White Male (16.8%) and Hispanic or Latino Female (2.63%).