Donte Small turns in his final exam to his professor, Jill Zimmerman, at Goucher College in Towson, Maryland. (Marvin Joseph/The Washington Post via Getty Images)

Racial and ethnic diversity has increased among college faculty in the United States over the past two decades, but faculty are still much more likely than students to be white.

In fall 2017, about three-quarters of postsecondary faculty members in the U.S. were white (76%), compared with 55% of undergraduates, according to the National Center for Education Statistics (NCES). In contrast, around a quarter of postsecondary faculty were nonwhite (24%), versus 45% of students. (Postsecondary faculty includes all faculty across institutions that grant associate degrees and higher.)

U.S. college students are twice as likely as faculty to be black, four times as likely to be HispanicThis imbalance extends to specific racial and ethnic groups. For example, in fall 2017, only 5% of faculty members were Hispanic, compared with 20% of undergraduates. Black faculty were also underrepresented compared with the black undergraduate population (6% vs. 14%). Conversely, Asian faculty made up a slightly higher portion of their peers compared with Asian students (11% vs. 7%).

U.S. college students still more likely than faculty to be racial or ethnic minoritiesThe share of nonwhite undergraduate students increased by 17 percentage points (from 28% to 45%) between fall 1997 and fall 2017, due partly to a rapidly rising share of Hispanic students. The Hispanic share of undergraduates more than doubled during this span, from 9% in 1997 to 20% in 2017.

By comparison, the share of full-time faculty members who were nonwhite grew by 10 percentage points over that period, from 14% vs. 24%.

In sharp contrast with the growing share of Hispanic students, the share of faculty who were Hispanic remained fairly flat, increasing from 3% in fall 1997 to 5% in fall 2017. Similarly, black faculty made up only 5% of the total in 1997 and 6% in 2017.

Nonwhites make up a comparatively small share of U.S. college facultyOverall, a larger share of assistant professors (junior faculty without tenure) were nonwhite in fall 2017, compared with fully tenured professors (27% vs. 19%). But junior faculty haven’t diversified much faster than their senior, fully tenured counterparts. Between fall 1997 and fall 2017, the share of nonwhite assistant professors grew by 10 percentage points, compared with 8 points for professors.

Researchers have found that racial, ethnic and gender gaps between college students and faculty exist across academic disciplines. (NCES last reported data on faculty race and ethnicity by academic discipline in 2003.) A 2017 study, for instance, showed that minority faculty members are especially underrepresented in science, technology, engineering and math (STEM) disciplines in the nation’s top 40 public universities.

Other research has found that minority students who have educators of the same race or ethnicity are more likely to look to those teachers as role models and to report greater effort in school and higher college goals. A study looking at community college classrooms found that performance gaps of minority students can close by 20% to 50% if faculty more closely resemble students.

The racial and ethnic imbalance in higher education is similar to the trend in K-12 public schools in the U.S., where teachers are far less racially and ethnically diverse than their students. In elementary and secondary schools, one-in-five teachers are nonwhite, compared with around half (51%) of public school students.

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