Gotham City has officially been on the map in the DC Comics universe since 1990. And it's in New friggin' Jersey.
The 1990 edition of "The Atlas Of The DC Universe" puts Gotham City on the north side of the Delaware River.
Wikipedia confirms it, as does the DC Comics wiki.
Source: en.wikipedia.org
Which means that Bruce Wayne is a Jersey Boy.
And you are going to have to deal with that.
Source: sodahead.com
So while growing up, aside from tragic parental loss, Bruce Wayne learned right and wrong from these guys:
Source: en.wikipedia.org / via: jerseyhero.blogspot.com
And he had Alfred drive him to pick up hoagies from here:
Source: Matt Navit / Creative Commons / via: navit