In North Jersey, you don't really have any concerted efforts on the county scale, or even the whole-township scale... but there are drips and drabs here and there of (re)development projects that are at least
urbanist if not wholly urban. Really mostly just on a site-by-site basis, especially on downtowns that need sprucing up or old long-vacant industrial sites. Eh... it's a start. You're not gonna be bulldozing wholesale tracts of single-family homes anyway, and at least in the inner suburbs that I'm familiar with, there's at least a skeleton of a bus/commuter rail network and a non-atrocious street pattern, so that's something at least. It's something pretty good by US standards!
Obviously it would be better to have something more comprehensive and concerted in that direction, but just as obviously the hyper-balkanized nature of NJ townships and boroughs will mean that this is just a pipe dream.
Probably the most noteworthy project I can think of is
Wesmont in Wood-Ridge, for the simple reason that NJ Transit is actually adding a new infill commuter rail station there.
