If you have a large role in them, it's an extracurricular. If you want to list it because you are simply in it, it's an honor/award. But from what I've heard, the only honor societies worth listing (as an honor/award) are Phi Beta Kappa and the engineering equivalent (Tau Beta Pi?), as they usually are the most selective.
At my school, it's laughably easy (relative to the premed population, not in general) to get invited into NSCS and Golden Key.