Illinois State University Student Population

How many students at Illinois State?

For the academic year 2024-2025, Illinois State University has a total enrollment of 21,546 students, including 19,107 undergraduate and 2,439 graduate students.

• Gender Breakdown: 8,998 male students (41.8%) and 12,548 female students (58.2%) are attending .
• Race and Ethnicity Breakdown: The two largest race/ethnicity groups are 13,650 White students (63.4%) and 2,895 Hispanic students (13.4%).
• Class Level Breakdown: 19,107 undergraduate students (88.7%) and 2,439 graduate students (11.3%).
• Class Delivery: 1,302 students are enrolled online exclusively, while 7,853 students take a hybrid mix of online and on-campus courses.

Compared to similar public Research University (high research activity) - which average 16,875 - Illinois State's body is larger.

Explore complete student demographics below, including gender ratio, race and ethnicity, age distribution, and distance learning statistics.

Enrollment by Gender and Class Level

By gender, 8,998 male (41.76%) and 12,548 female (58.24%) students are attending Illinois State University. The number of male students per 100 females students (male-to-female ratio) is 71.71.

By class level, 19,107 (88.68%) are undergraduate students and 2,439 (11.32%) are graduate students. Among undergraduates, 43.28% are male and 56.72% are female, while among graduate students, 29.85% are male and 70.15% are female.

• Enrollment Trends

Student Distribution by Race/Ethnicity

By race/ethnicity, 13,650 White, 2,775 Black, and 560 Asian students out of a total of 21,546 are attending at Illinois State University. Comprehensive enrollment statistic data by race/ethnicity is shown in the chart below (academic year 2024-2025 data).

Illinois State University is moderately diverse with a diversity index of 56.2% measured by Census Bureau Diversity Index. The institution shows moderate representation of multiple racial and ethnic groups.

• Total
• Undergraduate
• Graduate

Student Age Distribution

By age, Illinois State has 88 students under 18 years old and 10 students over 65 years old. There are 19,117 students under 25 years old, and 2,429 students over 25 years old out of 21,546 total students.

In undergraduate programs, 88 students are younger than 18 and 4 students are older than 65. Illinois State has 18,302 undergraduate students aged under 25 and 805 students aged 25 and over.

It has 815 graduate students aged under 25 and 1,624 students aged 25 and over.

• Total
• Undergraduate
• Graduate

Online Student Enrollment

Distance learning, also called online education, is very attractive to students, especially those who want to continue education and work in the field. At Illinois State University, 1,302 students are enrolled exclusively in online courses and 7,853 students are enrolled in some online courses.

1,212 students who live in Illinois or the jurisdiction in which the school is located are enrolled exclusively in online courses and 90 students live in another State or outside of the United States.

• Online Population
• By Locality

Transfer-in Students (Undergraduate)

Among 19,107 enrolled in undergraduate programs, 1,788 students have transferred-in from other institutions. The percentage of transfer-in students is 9.36%.1,605 students have transferred in as full-time status and 183 students transferred in as part-time status.