United States - Population was 332213.00000 Thous. in January of 2021, according to the United States Federal Reserve. Historically, United States - Population reached a record high of 332213.00000 in January of 2021 and a record low of 121878.00000 in January of 1929. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Population - last updated from the United States Federal Reserve on March of 2024.