Last time I heard the Italian language being spoken in NYC was in Whitestone, Queens. There is a section called "Malba" where the fire hydrants are painted red/white/green to symbolize the flag. The Bocci courts at Francis Lewis Park are always filled with Italian guys speaking the language.

Also fishing on the shoreline you may hear some Italian speakers. Last time I heard two Italian guys fishing near Cresthaven and yelling at some security guard to leave them alone in an italian/english mix. It was great.