Technically speaking, each of the five families operate throughout New York and New Jersey to one degree or another. No area is specifically dominated by one family, however. The mob moved beyond purely geographic lines a long time ago.

Of course, each family does have a strong presence in certain areas, compared to other places where it may not be as much. For the Genovese, it's Manhattan, the Bronx, Brooklyn, and New Jersey. For the Gambinos, it's Brooklyn, Queens, Staten Island, and Manhattan. For the Luccheses, it's Brooklyn, the Bronx, and New Jersey. For the Bonannos, it's Brooklyn and Staten Island. For the Colombos, it's Brooklyn and Long Island.