The news comes just two weeks after the Prohibition-era drama debuted its new season. Season 4, which premiered on Sept. 8, is currently averaging 7.5 million viewers an episode across all platforms, according to HBO.
The show picked up 5 Emmy Awards last Sunday, the most for any series this year, including a surprise win for Bobby Cannavale in the Outstanding Supporting Actor category for his one-season role as Gyp Rosetti.
“Thanks to Terry Winter, Martin Scorsese, Tim Van Patten, Howard Korder and their stellar team, 'Boardwalk Empire' remains in a class by itself,” said Michael Lombardo, president, HBO Programming in a statement.“I look forward to another electrifying season of this impeccably crafted series.”
The drama stars Steve Buscemi as Enoch "Nucky" Thompson, the undisputed leader of Atlantic City during the 1920s. It co-stars Kelly Macdonald, Michael Shannon, Michael Stuhlbarg and Michael Kenneth Williams.
"Boardwalk Empire" Season 4 continues Sundays at 9/8 p.m. CT on HBO.