This chart, via Visual Capitalist's Bruno Venditti, tracks life expectancy at birth across four World Bank income groups. While high-income countries still have the longest lifespans, the biggest gains have come elsewhere. Upper-middle income countries have added more than three decades to life expectancy, while low-income countries have made substantial progress as well.

High-Income Countries Still Lead

High-income countries still have the highest life expectancy, reaching 80.3 years in 2024.

That is up from 68.3 years in 1960, a gain of 12 years. These countries started from a much higher baseline, meaning their gains have been slower but still substantial.

Examples include the U.S., Germany, and Japan.

Upper-Middle Income Countries Saw the Fastest Gains

Upper-middle income countries posted the largest increase, rising from 41.9 years in 1960 to 76.3 years.

That is a gain of 34.4 years, the fastest improvement of any group in the dataset. This category includes countries such as China, Brazil, Mexico, and South Africa.

Much of this improvement coincided with rising incomes, better sanitation, expanded vaccination programs, lower child mortality, and broader access to healthcare. Together, these changes helped push life expectancy in many middle-income countries toward levels once seen only in the world's wealthiest economies.