(Image credit: Getty Images) The term "millionaire" has long been shorthand for financial success — and today, more Americans are reaching that milestone than ever before. According to a Bloomberg analysis, there are now more than 24 million millionaire households in the United States, accounting for nearly one in five households. What’s driving that growth is just as notable. Roughly a third of those households have crossed the million-dollar mark since 2017, fueled in part by rising home values and a strong stock market. And in many cases, that wealth isn’t sitting in cash. Instead, it’s built through assets like home equity and investment accounts, which have steadily pushed more households into millionaire territory. From just $107.88 $24.99 for Kiplinger Personal Finance Become a smarter, better informed investor.…