Cant think of another small-ish city mentioned (repeatedly) in recent Broadway productions as much as New Rochelle, NY.
That's where a lot of the initial action takes place in "Ragtime" if I'm remembering correctly. Additionally, two shows I saw this weekend: "Catch Me if You Can" takes place there in the first scenes, and Rosemary in "How to Succeed..." mentions it a lot.
Not being from the Northeast, I'm not sure how culturally relevant NR is, but just thought it was odd it popped up so much (and I can't remember hearing of it much anywhere else.) And yes, I know Abagnale's life dictated that particular setting.