To keep it simple, you'll need a digital scanner for Burlington County. Not much eles in south Jersey is digital except Pennsauken but they are encrypted. Camden county is supposed to be upgrading in a few years but unknown if it will be digital or not. Other digital modes like pro-voice that DRPA and Atlantic County uses you can't hear with any scanner.
Across the river Philly and Bucks county can be heard with a digital scanner. I'm sure I missed some, others will chime in with them.