How many of the top 500 supercomputers are located in the US?

As of the latest ranking, the United States hosts approximately 30% of the top 500 supercomputers. This positions the U.S. among the leading countries in supercomputing capabilities, though other nations like China also have a significant presence in the rankings. The exact number may vary with each ranking update, so it's advisable to check the latest Top500 list for the most current figures.