From WA Today:
The number of young billionaire women under the age of 40 jumped to seven from just two a year earlier, bringing the number of women under 50 with 10-figure fortunes to 20, up from 17. The average age of female billionaires has dropped from to 61.5 from 62.5 in just the past year.
Married or single, self-made or inherited, these women, ranging from 24 to 49 years old, have limitless earning potential and decades ahead to see their investments and business ventures flourish. They are emerging from some of the world's biggest economies, taking on corporate roles their grandmothers and even mothers never would have dreamed possible.