What is the net worth of all of the billionaires in the us combined?

As of October 2023, the combined net worth of all billionaires in the United States is estimated to be around $4 trillion. This figure fluctuates based on Stock Market performance and the valuations of their assets. The number of billionaires and their wealth can vary significantly over time due to economic conditions and individual financial decisions. For the most current and accurate data, it's advisable to consult financial news sources or databases like Forbes or Bloomberg.