The U.S. Census Bureau reported 331,449,281 residents as of April 1, 2020. This figure, like most official data for the United States as a whole, excludes the five unincorporated territories (Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, and the Northern Mariana Islands) and minor island possessions. According to the Bureau's U.S. Population Clock, on , the U.S. population had a net gain of one person every 100 seconds, or about 864 people per day. The United States is the third most populous nation in the world, after China and India. In 2020, the median age of the United States population was 38.5 years.