United States - Crude Birth Rate for Least Developed Countries was 31.37155 Births per 1,000 People in January of 2023, according to the United States Federal Reserve. Historically, United States - Crude Birth Rate for Least Developed Countries reached a record high of 48.27396 in January of 1951 and a record low of 31.08081 in January of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Crude Birth Rate for Least Developed Countries - last updated from the United States Federal Reserve on April of 2026.