California Institute of Technology competes in NCAA Division III (without football).
| Name | Participants | |
|---|---|---|
| Men | Women | |
| Baseball | 17 | 0 |
| Basketball | 14 | 9 |
| Fencing | 15 | 12 |
| Soccer | 19 | 0 |
| Swimming and Diving | 17 | 9 |
| Tennis | 12 | 7 |
| Track and Field, Outdoor | 14 | 4 |
| Track and Field, X-Country | 17 | 9 |
| Volleyball | 0 | 18 |
| Water Polo | 16 | 13 |