Quick, everyone check the floor of your sister’s truck. You might be a millionaire.

The Iowa Lottery is looking for the owner of a $1 million Powerball ticket purchased at a Casey's General Store in Nevada.

The ticket from the April 11 drawing has gone unclaimed for seven months.

It's the largest of 58 Iowa Lottery prizes worth $600 or more that remain unclaimed this year.

“Prizes of that size generally do not go unclaimed for this long,” said Mary Neubauer, vice president of external relations for the Iowa Lottery.

But tickets can and do go missing.

Lerynne West of Redfield left a lottery ticket worth hundreds of millions of dollars on the floor of her sister's pickup truck earlier this year.

She bought the ticket when she stopped at a Casey's for pizza and coffee.

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Once word got out that a winner had been sold in Redfield, West tracked down her tickets and claimed her $343.9 million prize.

The Casey’s store at 1800 South B Ave. in Nevada has signs in its windows about the unclaimed ticket. Lottery officials held a news conference there earlier this year, but it failed to get the winner to step forward.

It's possible the person either doesn’t know they won or lost the ticket.

“I think it was someone from out of state who was traveling through,” said Kim Cochran, manager at the Casey’s store located just of U.S. Highway 30.

Customers still ask about the unclaimed prize, she said.

The Powerball jackpot on April 11 was $89 million. The winning numbers were 16, 18, 27, 55, 67 and the Powerball was 18. The ticket sold in Nevada matched the first five numbers but missed the Powerball.

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The winner has until April 11, 2019, to claim the prize. (On multi-state games like Powerball, winners have a full year. Winners on Iowa games, like Pick 3 or Pick 4, get 90 days.)

If the $1 million goes unclaimed, the money goes back into the prize pool, Neubauer said.

The Iowa Lottery has two $50,000 Powerball prizes that have gone unclaimed this year. Those tickets were sold in Bettendorf and Pleasant Hill.

The smallest prizes on the lottery's list: Five Pick 4 tickets worth $625 each, which is “still better than a poke in the eye as the saying goes,” Neubauer said.

Think a ticket or yours may be unclaimed? You can check the list online at ialottery.com.

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