United States - Infant Mortality Rate for Lower Middle Income Countries was 32.60000 Number per 1,000 Live Births in January of 2023, according to the United States Federal Reserve. Historically, United States - Infant Mortality Rate for Lower Middle Income Countries reached a record high of 161.30000 in January of 1960 and a record low of 32.60000 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Infant Mortality Rate for Lower Middle Income Countries - last updated from the United States Federal Reserve on April of 2026.