United States - Population Growth for Middle Income Countries was 0.98194 % Chg. at Annual Rate in January of 2020, according to the United States Federal Reserve. Historically, United States - Population Growth for Middle Income Countries reached a record high of 2.42826 in January of 1966 and a record low of 0.98194 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Population Growth for Middle Income Countries - last updated from the United States Federal Reserve on April of 2024.