SYDNEY, Australia  —  Nicole Kidman (search) is Australia's richest young woman, according to BRW magazine's list of the country's top earners under age 40.

The Oscar-winning star of "The Hours" has an estimated worth of $108 million, said the magazine's "young rich" list, released Wednesday.

Kidman, 37, came in fourth overall and was the highest-ranked woman on the list, which was topped by 39-year-old mobile phone magnate John Ilhan, whose worth was put at $210 million.

Supermodel Elle Macpherson and pop star Kylie Minogue (search) were tied in third place on the rich women's list with $42 million each.