The Mafia is currently most active in the Northeastern United States, with the heaviest activity in New York City, Philadelphia, New Jersey, Buffalo and New England, in areas such as Boston, Providence and Hartford. It is also highly active in Chicago and other large industrial Midwestern cities such as Kansas City, Detroit, Pittsburgh, Milwaukee, Cleveland and St. Louis, with a smaller but significant presence in places such as New Orleans, Florida, Denver, Las Vegas and Los Angeles and with smaller families, associates, and crews in other parts of the country.[8] At the Mafia's peak, there were at least 26 cities around the United States with Cosa Nostra families, with many more offshoots and associates in other cities. There are five main New York City Mafia families, known as the Five Families: the Gambino, Lucchese, Genovese, Bonanno and Colombo families. The Italian-American Mafia has long dominated organized crime in the United States. Each crime family has its own territory and operates independently, while nationwide coordination is overseen by the Commission, which consists of the bosses of each of the strongest families. Though the majority of the Mafia's activities are contained to the Northeastern United States and Chicago, they continue to dominate organized crime, despite the increasing numbers of other crime groups. 1960s
