MIT Race Statistics

Undergraduates: 4,112. American: 3,812
Graduates: 6,228. American: 3,986
Faculty: 974 (no statistics about foreign nationals, as far as I could see; presumably most are American)

Percentage of White Americans and Asian Americans:

Undergraduate: White American (48.6%) Asian American (30.6%)
Graduate: White American (76.5%) Asian American (16.4%)
Faculty: (85.5%) Asian American (10.3%)

http://www.mit.edu/afs/athena/org/f/facts/enrollment.shtml
http://www.mit.edu/afs/athena/org/f/facts/international.shtml
http://www.mit.edu/afs/athena/org/f/facts/faculty.shtml