Well, that's very interesting. Allentown has a large Hispanic population which has largely taken over the "central city", such as it is. I suppose a poll like this all depends on who you ask.
I know a lot of people who used to live in Allentown, but I don’t know anyone who wants to live there.
The whole Lehigh Valley is very Democrat. I won't say Liberal in the sense of Cambridge or Berkeley, but they vote reliably Democrat on most things. I live and work in the LV, and while I know conservatives, everyone I work with is Democrat. Lots of Italians here, almost always Democrat no matter what, and lots of old union families (Beth. Steel leftovers).