| Race/Ethnicity | Number | Percent |
|---|---|---|
| White | 476 | 69.90% |
| Unknown | 64 | 9.40% |
| International | 42 | 6.17% |
| Asian | 35 | 5.14% |
| Black or African American | 30 | 4.41% |
| Multi-Ethnic | 21 | 3.08% |
| Hispanic | 10 | 1.47% |
| American Indian or Alaska Native | 2 | 0.29% |
| Native Hawaiian or Pacific Islander | 1 | 0.15% |
The majority of ONU graduate students are White.