At our high school, students from India and Middle Eastern descent are included in the white/Caucasian demographic figure. Seems they may be done that way in USC figures as well.
These are the 2018 figures:
Asians 16.8%
Black/African-American 5.6%
Hispanic 14.8%
White/Caucasian 30.7%
International 23.9%
Other 8.1%