First thing, go to
This Page and request the (free) Pheasant Packet. It includes hunting regs, ringneck outlook and Hunter's Atlas which is maps by county of all public lands. You can view maps of public areas
Here, scroll down to Public Hunting Maps.
Second, watch for the 2012 pheasant brood survey on the GF&P web site, should be out soon.
Pheasants in the northeast were hit hard by a couple bad winters. Last winter was extremely mild and brooding conditions were good so the population should spring back. They are resilient critters. The brood survey should tell, I haven't looked around enough to have an informed opinion.
Of course public areas close to major population centers and paved roads, particularly the Interstates, get hit the hardest. Also small areas get pretty well covered, big areas often not so much. Lazy hunters or hunters without dogs or enough people to cover thoroughly. Walking likely road ditches can be productive, we look for them when moving between areas.