The average graduation rate over the past 10 years (2015-2025) is 68.30% where the last year rate was 64%.
The average retention rate of the last 11 years is 81.10% for full-time students and 52.50% for part-time students.
The average graduation rate of the last 11 years is 68.30% where the current academic year rate is 64%.
The following table and chart show the changes of graduation rate at Illinois State University over the past 10 years (2015-2025).
| Year | Total | Men | Women |
|---|---|---|---|
| 2015-16 | 73% | 68% | 77% |
| 2016-17 | 72% | 68% | 75% |
| 2017-18 | 69% | 65% | 71% |
| 2018-19 | 69% | 62% | 74% |
| 2019-20 | 69% | 62% | 74% |
| 2020-21 | 68% | 60% | 73% |
| 2021-22 | 67% | 60% | 71% |
| 2022-23 | 66% | 60% | 71% |
| 2023-24 | 66% | 59% | 71% |
| 2024-25 | 64% | 56% | 70% |
| Average | 68.30% | 62.00% | 72.70% |
The average retention rate of the last 11 years is 81.10% for full-time students and 52.50% for part-time students.
The following table shows the changes of retention rate at Illinois State from 2015 to 2025.
| Year | Full-time | Part-time |
|---|---|---|
| 2015-16 | 82% | 50% |
| 2016-17 | 81% | 33% |
| 2017-18 | 81% | 75% |
| 2018-19 | 79% | 68% |
| 2019-20 | 79% | 56% |
| 2020-21 | 84% | 76% |
| 2021-22 | 83% | 41% |
| 2022-23 | 80% | 32% |
| 2023-24 | 81% | 44% |
| 2024-25 | 81% | 50% |
| Average | 81.10% | 52.50% |
The average student to faculty ratio over the last 11 years is 18.80 to 1 where the current academic year ratio is 19 to 1. The following table and chart illustrate the change of student to faculty ratio at Illinois State University since 2025.
| Year | Student to Faculty Ratio |
|---|---|
| 2015-16 | 18:1 |
| 2016-17 | 18:1 |
| 2017-18 | 18:1 |
| 2018-19 | 20:1 |
| 2019-20 | 19:1 |
| 2020-21 | 19:1 |
| 2021-22 | 19:1 |
| 2022-23 | 19:1 |
| 2023-24 | 19:1 |
| 2024-25 | 19:1 |
| Average | 18.80:1 |
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