| Race/Ethnicity | Number | Percent |
|---|---|---|
| International | 411 | 57.08% |
| White | 228 | 31.67% |
| Hispanic | 29 | 4.03% |
| Asian | 19 | 2.64% |
| Black or African American | 14 | 1.94% |
| Multi-Ethnic | 13 | 1.81% |
| Unknown | 6 | 0.83% |
| Native Hawaiian or Pacific Islander | 0 | 0.14% |
| American Indian or Alaska Native | 0 | 0.14% |
The majority of WPI graduate students are International.