Oldest People by Country 2025

The global median age has risen from 22.2 to 30.5 from 1950 to 2023. The median age is the age at which half of the population is younger and half older. The median age varies widely by country and links closely with life expectancy.

Oldest Median Age

Monaco has the oldest median age. The overall median age is 55 in 2023, 53 for men in Monaco and 57 for women. Monaco is a tiny but extremely wealthy country in Europe. Generally speaking, people live longer in wealthy, developed countries than they do in poorer, undeveloped ones.

The country with the second-oldest median age is Japan, at 48.6. Japan’s median age is more than six years less than Monaco’s. St. Pierre and Miquelon is No. 3, with a median age of 48.5. St. Pierre and Miquelon is a French territory 15 miles off the coast of Newfoundland, Canada.

Youngest Median Age

The ten countries with the youngest populations are in Africa. Indeed, the median age on the continent is 19. The country with the lowest median age is Niger, in Western Africa. The median age in Niger is 14.8. Uganda, in East Africa, has the second-lowest median age at 15.7.