Infant Mortality Rate by Country — 2023 World Rankings

The infant mortality rate — specifically the under-5 mortality rate — measures the number of children who die before reaching age 5 per 1,000 live births. It is one of the most sensitive indicators of a country's overall development, reflecting the quality of healthcare, nutrition, sanitation, and maternal health services. The data is compiled by the World Bank from UNICEF, WHO, and national vital registration systems.

Global under-5 mortality has fallen dramatically: from 93 deaths per 1,000 live births in 1990 to approximately 37 in 2023. This decline — saving millions of young lives annually — is one of the great public health achievements of the modern era, driven by oral rehydration therapy for diarrhea, expanded vaccination coverage, insecticide-treated bed nets for malaria, and improved maternal care. However, progress has been uneven: sub-Saharan Africa still accounts for roughly half of all child deaths worldwide.

The countries with the lowest infant mortality rates — Finland, Japan, Singapore, Iceland — have rates below 3 per 1,000, meaning child death before age 5 is statistically rare. The highest rates, exceeding 100 per 1,000 in some cases, are found in conflict-affected states (Somalia, Chad, Central African Republic) where healthcare systems have collapsed. For policymakers, infant mortality serves as a composite indicator: reducing it requires simultaneous improvements in clean water access, vaccination, nutrition, maternal education, and healthcare infrastructure.