AGI reports that the University of Arizona is one of ten universities that supply one fourth of all the geoscience faculty members nationwide. AGI notes that "Current tenure-track faculty members received their highest degrees from only 97 different universities, compared to a total of 268 schools that currently grant Ph.D.s in the United States. Of the 97 schools represented, the top ten schools have provided one quarter of all geoscience faculty in the United States."
School - Total number of graduates serving in tenure-track positions
MIT 201
California (Berkeley) 191
Wisconsin 188
Washington 184
Columbia 171
Stanford 171
Caltech 148
California (Los Angeles) 143
Harvard 139
Arizona 137
The disturbing news is that the number of geoscience faculty employed in geoscience departments at US colleges and universities dropped 1,200 from 13,554 in 1999 to 12,354 in January 2008