Age is nothing but a number. This applies to business and also the all mighty dollar. Forbes recent list of world billionaires included a decent representation of Americans. And, also there were several listed that are under the age of 40. USA Today highlighted the list’s top five youngest billionaires who are proud to represent the red, white, and blue. From bottom to top, here are the 5 Youngest Billionaires in America: 5. Julio Mario Santo Domingo III, 32 – $2.4 billion 4. Rishi Shah, 31 – $3.6 billion 3. Lukas Walton, 31 – $13.2 billino 2. Bobby Murphy, 29 – $3.2 billion Evan Spiegel, 27 – $3.1 billion Find out more about each of the billionaires in the video above.