The series will continue through at least 2016. Season 6 is set to air mid-2015, and Season 7 is expected to roll out mid-2016.
"'Pretty Little Liars' has taken its place in the zeitgeist and reigns supreme in pop culture," said Tom Ascheim, ABC Family president, in a statement. "I am glad to bring another two seasons to our audience, because 'A' has a lot in store for our Liars."
The announcement comes ahead of the show's fifth-season premiere Tuesday night.
The Warner Horizon Television-produced drama remains ABC Family's top dog, ranking as its highest-rated series in its history across key demographics: adults 18-34 (1.5 million viewers on average), adults 18-49 (2 million), women 18-49 (1.7 million) and women 18-34 (1.3 million). In terms of total viewers, it averages 3.8 million.
And given the TV landscape these days, we'd be remiss not to note its hold on social media. Nielsen named it one of the most tweeted-about series in the last year.
It stands as the second series on the network to reach the 100-episode milestone, in the company of "The Secret Life of the American Teenager" — and, with its renewals, will claim the title of the longest-running original series on ABC Family.