(Different commenter here.)

I've heard there are a few Jews living among the Arab population of the West Bank. I've heard nothing about Jews living in Gaza except for Israeli colonists who have since moved out. It doesn't make a lot of sense to me that non-colonist Jews would live in the occupied territories, because they are free to move to Israel by virtue of being Jews.

There is a small population of Arab Christians living in Gaza, and I would assume in the West Bank as well, though I can't recall hearing about them specifically.