$1.337 billion (Mega Millions): JIllinois history, though it could grow again before the next drawing: It’s also the fifth-largest lottery prize in U.S. However, if you’re lucky enough to win during Saturday’s drawing, you should know - you won’t exactly be an instant billionaire.Īt its current size, the jackpot ranks as the third-largest in Powerball history, coming in behind a $2.04 billion jackpot hit last November in California and a $1.586 billion jackpot split by three tickets (California, Florida, and Tennessee) in 2016. (NEXSTAR) - After more than 30 consecutive drawings without a winner, the Powerball jackpot has swelled to an estimated $1.4 billion.