Society

The world is getting older

Every country's age structure has a silhouette — children at the base, elders at the top. Here are 201 of them as one wall, youngest nations first, each pyramid mirrored male | female. Play the years and the wall deforms: triangles of children rise into towers of the old. The rust bands are people over 65 — watch them climb. Tap or hover any country.

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Data & source

Source: UN World Population Prospects 2024, population by single age and sex, medium-variant estimates 1950–2023 (not projections) · CC BY 3.0 IGO · fetched —. Single ages binned to 5-year bands (80+ pooled); the wall shows the 201 countries and areas with a complete series and at least ninety thousand people in 2023, sorted by 2023 median age. Median ages computed from the binned bands, so they can differ from the UN's published single-age medians by a few tenths of a year.