Countries by Child Mortality
Complete ranking of 195 countries • per 1,000 live births • Data refreshed May 28, 2026
Leader
Niger
Field size
195 countries
Lowest rank
San Marino
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About Under-5 Mortality Rate Rankings
Niger leads all 195 countries in Under-5 Mortality Rate with a value of 114.8 per 1k births, while San Marino ranks last at 1.40 per 1k births. This represents a 82-fold difference between the highest and lowest values.
What Under-5 Mortality Rate Measures
Deaths before age 5 per 1,000 live births, from World Bank Open Data.
Why This Ranking Matters
Examining Under-5 Mortality Rate across all countries reveals patterns that might not be obvious at the national level. Regional clusters, outlier nations, and historical trajectories all become clearer when the full global picture is assembled in a single ranking.
Global Range
Values range from 1.40 per 1k births (San Marino) to 114.8 per 1k births (Niger) — a 82-fold difference across 195 countries.
Regional Patterns
African countries dominate this ranking, holding 20 of the top 20 positions. This strong regional concentration suggests shared economic, geographic, or policy factors that drive higher values across the continent.
Values are broadly distributed across countries, with the middle 50% ranging from 6.10 per 1k births to 38.5 per 1k births. The overall spread from 1.40 per 1k births to 114.8 per 1k births reflects significant global variation.
Notable Outliers
The top of the ranking is competitive: Niger and Nigeria are separated by only 9%, indicating that the leading positions could shift with updated data.
Continental Leaders
Highest Under-5 Mortality Rate
The 5 strongest Under-5 Mortality Rate reads.
Lowest Under-5 Mortality Rate
The 5 lowest Under-5 Mortality Rate reads.
Data Note
Rankings are based on the latest available data from World Bank Open Data, covering 195 of 249 countries and territories. Countries without data for this metric are excluded from the ranking. All values represent the most recently reported figures.