| Student Age Group | Number | Percent |
|---|---|---|
| 20-21 | 12,607 | 34.87% |
| 18-19 | 11,320 | 31.31% |
| 22-24 | 6,519 | 18.03% |
| 25-29 | 3,021 | 8.35% |
| 30-34 | 1,156 | 3.20% |
| 35 and over | 1,065 | 2.95% |
Most Iowa State students fall into the 20-21 age-range. Student age diversity is considered average.