I suggest using the Department of Education college data. Most of the ~7,000 US schools listed have homepage URL listed, which you could grab the domain from wi

I suggest using the Department of Education college data. Most of the ~7,000 US schools listed have homepage URL listed, which you could grab the domain from with relative ease. Aside from that, you're probably looking at parsing Wikipedia pages or grabbing data from Petersons, which is not free. The DOE dataset is a good starting point, but you'll run into a fair (~300? I don't remember exactly) schools without domains listed, but they're schools like Joe's Barber School, not major universities. Any reasonably sized school has a domain in the DOE dataset. Peterson's is good, but they have restrictions on use which can be annoying to deal with if you care about legality. Also, on the note of .edu domains being restricted to post -secondary institutions; that's not entirely true. That wasn't the original rule, so some non-university level schools are grandfathered in and own .edu domains. For instance, my high school has a .edu domain.