* indicates monthly or quarterly data series
USA: Population size, in millions: For that indicator, United Nations Population Division provides data for the USA from 1960 to 2017. The average value for the USA during that period was 251.27 million with a minumum of 180.67 million in 1960 and a maximum of 325.72 million in 2017. See the global rankings for that indicator or use the country comparator to compare trends over time.
The population size of the USA and other countries is defined as the number of people living on the territory of the country. It includes domestic born and foreign born residents.
Definition: Total population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship. The values shown are midyear estimates.