Working Age Population: Aged 15-24: All for the United States was 37912389.52564 Persons in January of 2022, according to the United States Federal Reserve. Historically, Working Age Population: Aged 15-24: All for the United States reached a record high of 38897810.65472 in October of 2012 and a record low of 31951794.65302 in October of 1989. Trading Economics provides the current actual value, an historical data chart and related indicators for Working Age Population: Aged 15-24: All for the United States - last updated from the United States Federal Reserve on March of 2024.