Nationwide 7.7% of female workers own their own business, according to data from the U.S. Census Bureau. For many of these women, entrepreneurship offers more flexibility than traditional jobs, which is appealing. To find the locations with the most successful female entrepreneurs, researchers at Volusion used data from the U.S. Census and Bureau of Economic Analysis to calculate a comparable metric of purchasing power across locations. See why Raleigh is No. 5 here.