Kind of a strange question, but let me elaborate:
Because of sheer population density, NYC has the highest density of basically any group per square mile. It has the highest density of whites, blacks, Hispanics and Asians, actually has the highest density of Republicans in the country, probably the highest density of evangelical Christians in America too. And no doubt gun owners. But hunters?
Now I know a lot of people in Minneapolis who hunt (including some minorities, in fact it's known that Hmong are some of the biggest hunters here), but living in Minneapolis and hunting isn't too inconvenient, just pack up your car with your equipment, drive an hour in any direction during hunting season and boom, you'll be near a good hunting area. Not quite the case with NYC, I imagine Long Island has some hunting areas, as does northwest New Jersey and even places like upper Westchester county, but people aren't as likely to own cars and the needed permits are probably harder to obtain.
So do you think this is the case? If not then where is?
I'm not sure I'm quite following your question here?
In terms of density of hunters I thought Vermont had the highest in the country. I know Pennsylvania has the the most hunters per capita in the US.
Personally I wouldn't imagine that NYC would have the highest density of hunters(esp. given the lack of convenience and the very strict gun laws-even on hunting rifles).