One Powerball ticket worth $1 million from the Sept. 26 drawing was sold in Fayette County.
Officials said the ticket was sold at Byers Main Street Market in Uniontown.
The ticket correctly matched all five white balls, 13-26-39-41-42 but not the red Powerball 10, for a $1 million second-tier prize, less 25 percent federal withholding.
The retailer will receive a $5,000 bonus for selling the winning ticket.
Lottery officials cannot confirm the identity of the winner until the prize is claimed and the ticket is validated. Pennsylvania Lottery Powerball winners have one year from the drawing date to claim prizes.
The Lottery encourages the holder of the winning ticket to sign the back of the ticket, call the Lottery at 717-702-8146 and file a claim at Lottery headquarters in Middletown, Dauphin County, or at any of Lottery's seven area offices.
Claims may be filed at headquarters Monday through Friday, from 8 a.m. to 4 p.m., and from 8:30 a.m. to 4:30 p.m. at area offices.
With one jackpot-winning ticket sold in Iowa, the Powerball jackpot reset to an estimated annuity value of $40 million, or $25.7 million cash, for the Saturday, Sept. 29 drawing.
In the 2010-11 fiscal year, in addition to awarding more than $33 million in prizes to Fayette County winners, the Pennsylvania Lottery contributed more than $15.7 million to programs serving Fayette County's older residents.