The Biggest Mega Millions Jackpots Ever
Mega Millions has delivered some of the largest single prizes in world history. Here are the 10 biggest jackpots the game has produced:
- $1.602 billion — August 2023 (Florida)
- $1.537 billion — October 2018 (South Carolina)
- $1.348 billion — January 2023 (Maine)
- $1.128 billion — March 2024 (New Jersey)
- $1.050 billion — January 2023 (Michigan)
- $842 million — January 2023 (New York)
- $656 million — March 2012 (Kansas, Illinois, Maryland — 3 winners)
- $648 million — December 2013 (California, Georgia — 2 winners)
- $543 million — July 2018 (California)
- $536 million — July 2016 (Indiana)
Like Powerball, the biggest prizes cluster in recent years, driven by a matrix change that made winning significantly harder.
How the 2017 Rule Change Supercharged Jackpots
In October 2017, Mega Millions overhauled its number format. The main pool expanded from 1-75 to 1-70 (fewer main numbers, but a different combination structure), while the Mega Ball pool grew from 1-15 to 1-25. The net effect pushed jackpot odds from 1 in 259 million to 1 in 302.6 million. (A second change on April 8, 2025 trimmed the Mega Ball pool to 1-24, easing the odds slightly to 1 in 290.5 million.)
Harder odds mean fewer jackpot winners, which means more rollovers, which means bigger prizes. Within a year of the change, Mega Millions produced its first-ever billion-dollar jackpot — the $1.537 billion prize in October 2018. The ticket price also doubled from $1 to $2 (and rose again to $5 in April 2025), directly increasing the prize pool with every ticket sold.
Rollover Mechanics: How Jackpots Snowball
Mega Millions jackpots start at $20 million and grow each time no one matches all six numbers. The growth rate depends on ticket sales, which are themselves driven by jackpot size. When the prize passes psychological thresholds — $100 million, $500 million, $1 billion — casual players flood in, dramatically accelerating the growth.
This feedback loop is why the final few drawings of a long rollover streak often add hundreds of millions in a single jump. The $1.602 billion jackpot in August 2023 grew by over $200 million in its final drawing cycle alone. For more on how Mega Millions works, see our Mega Millions Complete Guide.
The Cash Value Reality
Every figure above is the annuity value — the total paid over 30 graduated annual payments. Most winners opt for the lump sum, which is roughly 50-60% of the headline amount. After federal taxes (up to 37%) and state taxes (which vary widely), the actual check is a fraction of the advertised jackpot.
The $1.537 billion winner in South Carolina, for instance, chose the cash option of approximately $878 million. After federal withholding, the take-home was closer to $570 million. State tax impact varies enormously — California does not tax lottery winnings, while New York takes over 10%. Use our Jackpot Tax Calculator to see the breakdown for your state, and read our annuity vs. lump sum comparison to understand the tradeoffs.
Tracking Mega Millions Trends
Whether the jackpot is at $20 million or $2 billion, the odds of winning remain exactly the same: 1 in 290,472,336. But tracking which numbers have been appearing frequently can make the selection process more engaging. Explore Mega Millions drawing data on our Hot & Cold and Frequency pages to see current trends across every state we cover.
DrawAnalytics is an informational service. We do not sell predictions or guarantee outcomes. Lottery drawings are random — past results do not predict future drawings. Play responsibly. 1-800-GAMBLER.