Another word referring to what your type is or what kind of person you're into.
From "Zack and Miri"
Brandon: You're not my demographics so I'm not offended.
Zack: What's your demographics?
Brandon:Do you like pussy?
Brandon: Then not you!!
A group of people of another race than yours. Commonly used while in a crowd of them, you could for example say
Wow that free stuff sure did attract alot of demographics.