It is also located near an off-ramp to a freeway.
A Powerball spokesman said it may take some time to determine whether someone won an estimated $435 million jackpot Saturday, the Associated Press reported.
Menifee is a city of 89,000 people southeast of Los Angeles.
Matthew Alberre, the store's manager, said he was with family celebrating his cousin's high school graduation when he received word about the winning ticket.
This year started out tough for Alberre and his father because the father is suffering from pulmonary fibrosis lung disease. "We're very, very grateful for this to happen to our store".
Cloudy skies, rain expected into the midweek
"An additional 0.50" to 1.50+" of rain will be possible through late Tuesday , with isolated higher amounts in stronger storms. On Tuesday night , rain showers are likely and possibly a thunderstorm before midnight, then a chance of rain showers.
Powerball lottery tickets are held at Jessie's Express Cafe with the jackpot at 1.5 billion dollars in New York City on January 12, 2016.
Menifee has about 89,000 residents.
The almost half-a-billion dollar jackpot is the seventh largest in Powerball history, and reportedly the tenth largest in US lottery history.
The owner of the California deli that sold the sole jackpot winning Powerball ticket on Saturday calls the win "unbelievable". Officials say the earliest the ticket could be redeemed is 8 a.m. Monday.
The unnamed victor has a year to claim the jackpot. His store gets $1 million from the state as the lucky retailer. Saturday's Powerball drawing was the 10th largest lottery prize in US history. California is one of 44 states, plus Washington, D.C., Puerto Rico and the U.S. Virgin Islands, that participate in Powerball.
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