current united states population
The current U.S.A. population is over 300 million people (324,485,597 as of 2017). The United States has the world's third largest population (following China and India). As the world's population is approximately 7.3 billion, the current United States population represents a mere 4.5% of the world's population. That means that about one in every twenty people on the planet is a resident of the United States of America. In 1790, the year of the first census of the U.S. population, there were 3,929,214 Americans.