Note that it doesn't show the exact number of subscribers (which is higher) for each school as many people use a webmail address such as gmail.com.
Also check out
| Domain |
Count |
Description |
| umich.edu |
362 |
University of Michigan |
| columbia.edu |
213 |
Columbia University |
| harvard.edu |
211 |
Harvard University |
| cornell.edu |
191 |
Cornell University |
| umn.edu |
190 |
University of Minnesota |
| mit.edu |
181 |
Massachusetts Institute of Technology |
| washington.edu, uw.edu |
160 |
University of Washington |
| yale.edu |
129 |
Yale University |
| wisc.edu |
114 |
University of Wisconsin |
| psu.edu |
109 |
Pennsylvania State University |
| ucla.edu |
94 |
University of California, Los Angeles |
| virginia.edu |
93 |
University of Virginia |
| unc.edu |
88 |
University of North Carolina at Chapel Hill |
| upenn.edu |
88 |
University of Pennsylvania |
| stanford.edu |
85 |
Stanford University |
| nyu.edu |
82 |
New York University |
| osu.edu |
80 |
Ohio State University |
| uchicago.edu |
76 |
University of Chicago |
| umwestern.edu |
75 |
University of Montana Western |
| berkeley.edu |
75 |
University of California at Berkeley |
| ucsd.edu |
74 |
University of California at San Diego |
| msu.edu |
73 |
Michigan State University |
| stevens.edu |
73 |
Stevens Institute of Technology |
| duke.edu |
73 |
Duke University |
| ucdavis.edu |
71 |
University of California, Davis |
| highlands.edu |
71 |
Georgia Highlands College |
| bu.edu |
71 |
Boston University |
| colorado.edu |
69 |
University of Colorado |
| utexas.edu |
69 |
University of Texas at Austin |
| princeton.edu |
65 |
Princeton University |
| cuny.edu |
64 |
City University of New York |
| vt.edu |
62 |
Virginia Tech |