The student population at Southeastern Illinois College is 1,446 (all undergraduate). The number of students has decreased by 588 over the past decade.
The female to male ratio is 1.19 to 1 which means that female students enrolled slightly more than male students.
117 students enrolled in online degree program exclusively and the number of online students has decreased by -76.41% since 2015.
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.
The female to male ratio is 1.19 to 1 and it means that there are slightly more female students enrolled in SIC than male students.
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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