Currently, there are significant disparities in the STEM workforce. Blacks, Hispanics, and Native Americans are extremely underrepresented among STEM workers (9%, 7%, and <1%, respectively), and even more so less represented amongst STEM college graduates. Women also remain underrepresented in STEM occupations, but less so compared to the past. The STEM workforce is getting more diverse but there is still more work to be done (and rocketry can help).
(Sources: National Science Foundation, Pew Research Center, US Census Bureau)