Here is how the race stands as far as county endorsements:

John Crowley
Mercer
Burlington (expected)

Andy Unanue (John Crowley's if he decides to join the race)
Atlantic
Camden
Cape May
Cumberland
Hudson
Monmouth
Ocean

Joe Pennacchio
Bergen
Hunterdon
Middlesex
Passaic
Salem
Somerset
Union

Murray Sabrin
Gloucester

John Crowley has not decided to run yet though he needs to decide on way or the other in the next couple of days (filing date is April 7th, Monday). If he decides to run he will make the race very competitive as Unanue has made it clear he will resign from the race if Crowley does join.