United States - Population Ages 15 to 64 for Upper Middle Income Countries was 68.82388 % of Total in January of 2020, according to the United States Federal Reserve. Historically, United States - Population Ages 15 to 64 for Upper Middle Income Countries reached a record high of 70.62850 in January of 2011 and a record low of 55.86183 in January of 1966. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Population Ages 15 to 64 for Upper Middle Income Countries - last updated from the United States Federal Reserve on April of 2024.