The Winning Numbers were 6-9-17-18-48, with 8 as the Mega Ball.
The jackpot won in Pennsylvania is the highest amount won in the state since it became a Mega Millions participant in 2010.
The amount was the ninth-largest in Mega Millions history and the largest the game has ever awarded in the month of May, according to the statement.
In January, a winning ticket worth more than $1 billion sold in Michigan.
Mega Millions is one of America’s two big jackpot games, and the only one with Match 5 prizes up to $5 million with the optional Megaplier.