yep you are correct noah, the city in the movie is fictional, if you look closely at one scene ,i forget which one, there is a fictional zip code.....posted at his website..."Chuck was notorious for using an alter-ego "Nick" as his name when frequenting bars with his friends. Knowing in advance that he'd probably get into a brawl, he protected his real identity. That way, if he was seen saying his name was Nick... and people around him were calling him by the name... afterwards, when the bartender called the police to report Chuck... they'd have a fake lead and he'd get off scott-free. This fake name later became Tyler Durden."

Delaware has some of the best beaches.
Delaware ain't bad but Wilmington is another matter. I intentionally ran a red light there just so I wouldn't be a sitting target for the deranged man in the middle of the intersection attacking a rag (maybe a coat at one time) in one hand using the knife he held in the other. By contrast, brunch at the Dupont Hotel is kinda nice.
Ever drive from Wilmington to Chester off the expressways? There could be any number of Paper Streets in all those nearly forgotten places where dirt streets and blackened soil go down to meet the river.

Penns Grove (the NJTransit bus 423(?) goes from Wilmington across the Del Mem bridge to Penns Grove and Pennsville. You're right, I've never met anyone from either of those places but then, I very rarely meet anyone from Delaware, except at PHL.

I've got to watch that movie again. Funny that my ears didn't perk up when he mentioned those familiar places.
I know the Delaware Valley because I'm from Camden but I got the hell out when I could.