The Des Plaines woman, who opted to remain anonymous, purchased the winning ticket at ZJ's Pantry Plus Liquors, located at 699 N. Wolf Road in Des Plaines.
She won the $2 million top prize on a $20 $2,000,000 Maximum Multiplier Instant Ticket, the lottery said.
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"I couldn't believe I won, especially from a store I frequent," the woman said. "I've won $10,000 in the past, but this is my first top prize."
The woman said she plans to invest in a new house and take a vacation.
"I just feel so blessed from this win," she said. "I'm going to treat myself - a trip to the Big Apple sounds like a perfect celebration."
For selling the winning ticket, ZJ's Pantry Plus Liquors will receive a $20,000 retailer selling bonus, equal to 1 percent of the prize amount.