At Dave's house, he has Mount Holly for his Current Conditions screen, and the ID is 21872.
I get that same one here in Marlton. I think I live right near the border of 21872 and 21873's coverage areas. Cherry Hill, just a mile or two down NJ 70 from here, gets 21873. Berlin, also only 10-15 mins from here, gets 21896. I also think I live really close to the border of Camden's and Vineland's Weatherscan coverage areas.
South Jersey has at least 10-15 domestic IntelliStar units, but only three regional Weatherscan units that serve several headends and therefore huge areas (Camden, Vineland, Atlantic City).