The largest U.S. lottery jackpots ever won

Every one of the twenty largest jackpots by finalized annuity came after October 2015, the month Powerball lengthened its odds.

Count of the top 20 by finalized annuity with a draw date after 2015-10-04, over the full 606-jackpot set. There is no exception.

The headline inflated; the pool did not shrink. Since 2022 the same cash pool has funded a 30-year headline about 2.02× its size, against 1.76× across the full dataset. Interest rates price the headline, not the prize.

Mean of finalized annuity ÷ finalized cash, weighted equally per jackpot, over the 416 jackpots with both figures finalized. Post-2022 subset: 62 jackpots. The annuity is what the pool buys in 30-year securities at that year’s rates, so the ratio moves with rates while the pool stays the pool.

California has produced 13 of the 50 largest jackpots by finalized annuity.

Winning-state counts over the top 50 by finalized annuity; a split draw counts once for each state that sold a winning ticket. Draws whose winning state is not established are excluded from the count, not from the ranking.

The record finalized annuity has doubled roughly every 7.0 years since 2002.

Log-linear fit on the running maximum of finalized annuity, 2002–2026 (25 annual maxima). R² = 0.91. The endpoints are $315M and $2.04B; end to end those alone imply a doubling every 8.9 years. The fit is faster because it follows every step between them, not just the two ends. Records before the 2002 big-game consolidation are excluded as a different product.

Across the top 100 by finalized annuity, the median winner kept an estimated 32.7% of that headline, roughly one-third of the 30-year figure the game stood behind.

Kept ÷ finalized annuity, median over the 91 of the top 100 that carry a kept figure. Kept is finalized cash after the 2026 federal brackets and the winning state’s rate, from the same engine the state pages use. Splits: even shares, each taxed in its own state, summed. Local taxes excluded. Advertised figures are not used here.