WA's $10m Lotto winner yet to come forward

Someone in Perth's northern suburbs has won the entire $10 million OZ Lotto jackpot.

It is the fourth division one Lotto win in Western Australia in just three days.

The winning ticket on Tuesday night was sold at Princess Road News and Lotto in Balga.

Lotterywest spokesperson Pina Compagnone said 40 West Australians had won division one so far this year.

Ms Compagnone said the $10 million prize was the state's second largest for the year after a couple from Perth's southern suburbs collected $15 million in April.

Lotterywest is waiting to hear from WA's newest multimillionaire.