The student population at Southeastern Illinois College is 1,446 (all undergraduate). The number of students has decreased by 588 (28.91%) over the past decade.
The average student population over the last 11 years is 1,561 where 1,446 students are attending the school for the academic year 2024-2025.
Total enrollment fluctuated between 2016 and 2025, with 4 year-over-year increases and 5 decreases. It peaked at 2,034 students in 2016 and was lowest at 1,239 in 2022. Overall, enrollment dropped from 2,034 to 1,446 students, a net loss of 588 (28.9%).
The following table and chart illustrate the changes in student population by gender at Southeastern Illinois College since 2015.
| Year | Total | Men | Women |
|---|---|---|---|
| 2015-16 | 2,034 | 848 | 1,186 |
| 2016-17 | 1,820 -214 | 785 -63 | 1,035 -151 |
| 2017-18 | 1,655 -165 | 729 -56 | 926 -109 |
| 2018-19 | 1,650 -5 | 731 2 | 919 -7 |
| 2019-20 | 1,732 82 | 710 -21 | 1,022 103 |
| 2020-21 | 1,263 -469 | 533 -177 | 730 -292 |
| 2021-22 | 1,239 -24 | 539 6 | 700 -30 |
| 2022-23 | 1,379 140 | 616 77 | 763 63 |
| 2023-24 | 1,392 13 | 632 16 | 760 -3 |
| 2024-25 | 1,446 54 | 661 29 | 785 25 |
| Average | 1,561 | 678 | 883 |
The percentage of white students is 87.41%. The percentage was 86.82% 10 years ago and SIC still has a high percentage of white students. 0.83% of enrolled students is Asian and 2.49% is black students. Hispanic students comprise 3.04% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students increased from 86.82% to 87.41%. Asian enrollment grew from 0.39% to 0.83%. Black student enrollment decreased from 4.47% to 2.49%. Hispanic student representation expanded from 1.38% to 3.04%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.2333 which indicates that not very diverse. This decreased from 0.2432 a decade ago, suggesting that racial diversity has declined.
The following table and chart illustrate the student population trends by race/ethnicity at Southeastern Illinois College over the past 11 years (2015-2025).
| Year | American Indian or Native American | Asian | Black | Hispanic | Native Hawaiian or Other Pacific Islander | White | Two or More Races |
|---|---|---|---|---|---|---|---|
| 2015-16 | 6 | 8 | 91 | 28 | 0 | 1,766 | 55 |
| 2016-17 | 3 | 11 | 51 | 34 | 0 | 1,584 | 53 |
| 2017-18 | 3 | 10 | 55 | 31 | 0 | 1,416 | 46 |
| 2018-19 | 3 | 11 | 46 | 23 | 1 | 1,453 | 40 |
| 2019-20 | 6 | 11 | 53 | 31 | 0 | 1,513 | 43 |
| 2020-21 | 5 | 11 | 32 | 24 | 0 | 1,107 | 28 |
| 2021-22 | 2 | 4 | 35 | 26 | 0 | 1,076 | 31 |
| 2022-23 | 4 | 7 | 34 | 36 | 0 | 1,205 | 38 |
| 2023-24 | 6 | 7 | 45 | 33 | 2 | 1,207 | 40 |
| 2024-25 | 4 | 12 | 36 | 44 | 2 | 1,264 | 45 |
| Average | 4 | 9 | 48 | 31 | 1 | 1,359 | 42 |
117 students are enrolled in online degree programs exclusively for the academic year 2024-2025, which is 8% of total students. The number of online students has decreased -76.41% since 2015. The following table and chart illustrate the changes in the online student population by enrolled type at Southeastern Illinois College from 2015 to 2025.
| Year | Total Enrollment | Online Completely | Enrolled in Some Online Courses | Not Enrolled in Online Courses |
|---|---|---|---|---|
| 2015-16 | 2,034 | 496 | 561 | 977 |
| 2016-17 | 1,820 | 468 | 527 | 825 |
| 2017-18 | 1,655 | 356 | 490 | 809 |
| 2018-19 | 1,650 | 334 | 491 | 825 |
| 2019-20 | 1,732 | 260 | 525 | 947 |
| 2020-21 | 1,263 | 268 | 427 | 568 |
| 2021-22 | 1,239 | 160 | 407 | 672 |
| 2022-23 | 1,379 | 233 | 487 | 659 |
| 2023-24 | 1,392 | 123 | 454 | 815 |
| 2024-25 | 1,446 | 117 | 451 | 878 |
| Average | 1,561 | 282 | 482 | 798 |
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