The 2020 Census resident population of 331,449,281 includes all people living in the 50 states and the District of Columbia as of April 1, 2020. Of the U.S. resident population, 37.2% (123,425,864) lived in the five most populous states in 2020 and over a quarter (27.2%) were in the three largest states: California, Texas, and Florida (Table 1).