• Life expectancy varies across the world, largely due to environmental factors.
• The World Bank Group ranked life expectancy in different countries around the world.
• Monaco and San Marino reported the highest life expectancies, while Nigeria and Chad had the lowest.
Jeanne Calment was the oldest verified person to have ever lived, passing away at 122. She was born in 1875, just a decade after the US Civil War ended, and died in 1997, a year before Google launched.
Despite Calment's extraordinary longevity, her home country, France, ranks just outside the top 20 countries for life expectancy. In some parts of the world, however, living past 100 years old is the norm.
The World Bank Group collected data through 2023 on life expectancy at birth by country. The data showed that Monaco and San Marino reported the highest life expectancies, while Nigeria and Chad had the lowest.
The countries ranked highest tend to be wealthier, with solid healthcare systems and lower rates of early-life mortality. Meanwhile, the countries with the lowest life expectancy often face challenges such as disease, malnutrition, and conflict.
The US ranked 48th in the data set, with an average life expectancy of 78.4 years.
The World Bank Group used statistics from sources such as the United Nations Population Division and Eurostat. Business Insider did not include autonomous regions and territories listed in the data.
See the 15 countries with the highest life expectancy, followed by the 15 with the lowest.
