<p>The Claremont Colleges have an enrollment of ~5500,</p>
<p>The largest is Pomona with ~1600. Each of the other four has between 800 and 1000, and then CGU and Keck (non-undergrad) throw in a few more</p>
<p>EDIT: Sorry, didn’t see the 400 miles criterion; these are in CA.</p>