A traditional college student is defined as being between the ages of 18-21. At Grinnell, 90.0% of undergraduate students fall into that category, compared to the national average of 60%.
| Student Age Group | Number | Percent |
|---|---|---|
| 18-19 | 788 | 45.5% |
| 20-21 | 771 | 44.5% |
| 22-24 | 147 | 8.5% |
| Under 18 | 21 | 1.2% |
| 25-29 | 5 | 0.3% |
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