Population Ages 0 to 14 for Low and Middle Income Countries was 27.18090 % of Total in January of 2020, according to the United States Federal Reserve. Historically, Population Ages 0 to 14 for Low and Middle Income Countries reached a record high of 41.14389 in January of 1966 and a record low of 27.18090 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Ages 0 to 14 for Low and Middle Income Countries - last updated from the United States Federal Reserve on April of 2024.