I probably should have said 'Northeast' rather than 'urban New England' specifically. I mis-remembered; that area encompasses fewer states than I thought it did (and NH is a good counterexample- gun laws there are great, if I remember correctly).

Anyways, in the Northeast, the states with less liberal gun laws (NY/MD/CT/Mass./NJ) also happen to contain most of that area's population, especially in the larger cities like NYC/Boston/Baltimore. NH is good, but it's a very small piece of that region.