<p>Mensa isn’t impressive. When it comes to the very top colleges, probably virtually all of the applicants would qualify for Mensa. Regardless, what colleges care about is what you have done with your intellect, not what your IQ is. </p>
<p>I think that listing Mensa as an honor would make one seem more interested in hitting the right numbers, which when it comes to IQ is an accident of birth, than in actually doing things that result in awards and impact.</p>
<p>Now, if you’re actually doing something with Mensa such as speaking at conferences, that would be an EC to list.</p>