The winners have 180 days from the drawing to claim their money. There's $1 million waiting for a person who played Powerball in Bothell earlier this month. The winner of a $3.3 million lotto ticket bought in Lynnwood in March is out of luck after September.
Financial adviser Michael Boone said it might not be a case of missing tickets.
"There's a lot of good reasons why somebody might wait a little bit," he said.
Boone said the decision to delay coming forward could be more calculating than careless, especially if the mystery winner's marriage is on the skids.
"We had a call from a person who had won a lottery and had a ticket, but they were in the ninth inning of a divorce," he said.
If not the state of marriage, maybe a state income tax has them on hold. Boone said some clients hold off on claiming winnings so they can establish residency in a state without income tax.
Washington Lottery officials say every year nearly $4 million in winnings go unclaimed. At Sea-Tac Airport, travelers buy $20,000 in scratch tickets a week, but few are willing to return through security to claim a couple of dollars.
Tickets have been turned in crumpled, washed and taped together, but lottery officials say if they can still scan them, they will pay out the money.
A third of all unclaimed winnings in Washington go into the state's economic strategic reserve account. On Tuesday, Gov. Jay Inslee released $150,000 from that reserve to help communities losing business because of the Skagit River Bridge collapse.