How many students at Northern Illinois? For the academic year 2024-2025, a total of 15,414 students have enrolled in Northern Illinois University with 11,348 undergraduate and 4,066 graduate students.

By gender, 6,960 male and 8,454 female students are attending the school.

It has relatively fewer students compared to similar colleges (16,875 students on average - public Research University (high research activity)).

2,197 students are enrolled exclusively, and 7,937 students are enrolled in some online courses.

You can check the student demographics by gender ratio, race/ethnicity, age distribution, and online enrollment.


Student Population by Gender

Northern Illinois University has a total of 15,414 enrolled students for the academic year 2024-2025. 11,348 students have enrolled in undergraduate programs and 4,066 students joined graduate programs.

By gender, 6,960 male and 8,454 female students (the male-female ratio is 45:55) are attending the school.

Total Student Enrolled By Gender
TotalUndergraduateGraduate
Total15,41411,3484,066
Men6,9605,3301,630
Women8,4546,0182,436
Northern Illinois University 2025 Student Population by Gender and Race chartNorthern Illinois University 2025 Undergraduate Enrollment by Gender and Race chartNorthern Illinois University 2025 Graduate Enrollment by Gender and Race chart

Student Distribution by Race/Ethnicity

By race/ethnicity, 6,831 White, 2,741 Black, and 921 Asian students out of a total of 15,414 are attending at Northern Illinois University. Comprehensive enrollment statistic data by race/ethnicity is shown in the chart below (academic year 2024-2025 data).

Northern Illinois University is quite diverse with a diversity index of 71.9% measured by Census Bureau Diversity Index. The institution demonstrates strong racial and ethnic diversity among its student body.

Race/Ethnicity Distribution (Total)
RaceTotalMenWomen
American Indian or Native American643034
Asian921447474
Black2,7411,0511,690
Hispanic3,4071,5001,907
Native Hawaiian or Other Pacific Islanders1358
White6,8313,1413,690
Two or more races268113155
Race Unknown19710493
Race/Ethnicity Distribution (Undergraduate)
RaceTotalMenWomen
American Indian or Native American612833
Asian728379349
Black2,3819411,440
Hispanic2,9171,3301,587
Native Hawaiian or Other Pacific Islanders1248
White4,7662,3872,379
Two or more races17774103
Race Unknown1056441
Race/Ethnicity Distribution (Graduate)
RaceTotalMenWomen
American Indian or Native American321
Asian19368125
Black360110250
Hispanic490170320
Native Hawaiian or Other Pacific Islanders110
White2,0657541,311
Two or more races913952
Race Unknown924052
Northern Illinois University 2025 Student Population by Gender and Race chartNorthern Illinois University 2025 Undergraduate Enrollment by Gender and Race chartNorthern Illinois University 2025 Graduate Enrollment by Gender and Race chart

Student Age Distribution

By age, Northern Illinois has 3,185 students under 18 years old and 51 students over 65 years old. There are 11,324 students under 25 years old, and 4,180 students over 25 years old out of 15,504 total students.

In undergraduate programs, 3,185 students are younger than 18 and 28 students are older than 65. Northern Illinois has 10,251 undergraduate students aged under 25 and 1,107 students aged 25 and over.

It has 1,073 graduate students aged under 25 and 3,073 students aged 25 and over.

*The age distribution is based on 2023-2024 enrollment data.

Student Age Distribution (Total)
AgeTotalMenWomen
Under 183,1851,7811,404
18-193,5281,9441,584
20-212,5311,2361,295
22-242,0801,0281,052
25-291,680878802
30-34732416316
35-39596373223
40-49805544261
50-6431622888
Over 65512922
Student Age Distribution (Undergraduate)
AgeTotalMenWomen
Under 183,1851,7811,404
18-193,5271,9431,584
20-212,4891,2081,281
22-241,050494556
25-29496219277
30-3421611898
35-3916411252
40-491369541
50-64675017
Over 65281513
Student Age Distribution (Graduate)
AgeTotalMenWomen
18-19110
20-21422814
22-241,030534496
25-291,184659525
30-34516298218
35-39432261171
40-49669449220
50-6424917871
Over 6523149
Northern Illinois University 2024 Student Population by Age chartNorthern Illinois University 2024 Student Population Age Diversity Pie chartNorthern Illinois University 2024 Undergraduate Enrollment by Age chartNorthern Illinois University 2024 Undergraduate Enrollment Age Diversity Pie chartNorthern Illinois University 2024 Graduate Enrollment by Age chartNorthern Illinois University 2024 Graduate Enrollment Age Diversity Pie chart

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 Northern Illinois University, 2,197 students are enrolled exclusively in online courses and 7,937 students are enrolled in some online courses.

2,012 students who live in Illinois or the jurisdiction in which the school is located are enrolled exclusively in online courses and 185 students live in another State or outside of the United States.

Online Student Population
All StudentsEnrolled Exclusively Online CoursesEnrolled in Some Online Courses
All Students15,4142,1977,937
Undergraduate11,3488307,157
Graduate4,0661,367780
Online Student Population by Locality
Illinois ResidentsOther States in U.S.Outside of U.S.
All Students2,01217213
Undergraduate787421
Graduate1,22513012
Northern Illinois University 2025 Online Student Population chart

Transfer-in Students (Undergraduate)

Among 11,348 enrolled in undergraduate programs, 1,461 students have transferred-in from other institutions. The percentage of transfer-in students is 12.87%.1,238 students have transferred in as full-time status and 223 students transferred in as part-time status.

Transfer-in Students (Undergraduate)
Number of Students
Regular Full-time8,781
Transfer-in Full-time1,238
Regular Part-time1,106
Transfer-in Part-time223

Northern Illinois Enrollment Frequently Asked Questions

For the academic year 2024-2025, 15,414 students are enrolled at Northern Illinois.
11,348 undergraduate and 4,066 graduate students are enrolled at Northern Illinois.
6,960 male (45.15%) and 8,454 female (54.85%) students are attending Northern Illinois.
972 international students (6.31%) are enrolled at Northern Illinois, including 201 undergraduate and 771 graduate students.
Northern Illinois has a student population that is quite diverse with no single group in majority: 6,831 White (44.32%), 2,741 Black (17.78%), and 921 Asian (5.98%) students are enrolled.
3,185 students are under 18 and 51 students are over 65 years old.
2,197 students are enrolled exclusively online, and 7,937 students take some online courses.

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