Countries by Median Age 2026

About This Dataset

Countries ranked by median age of the total population in 2026, according to UN World Population Prospects 2024 revision estimates. Japan has the world's highest median age among major nations — with nearly half the population aged 49 or older, a demographic profile produced by decades of ultra-low fertility rates averaging around 1.2 births per woman combined with extraordinary longevity that keeps the elderly population growing in absolute size. Japan's demographic ageing crisis has become a defining policy challenge: a shrinking working-age population must support an expanding retired cohort through a pension and healthcare system designed for a much younger age structure, prompting experiments with automation, immigration liberalisation, and female workforce participation that have yet to reverse the fundamental trajectory.

✨ AI Insight

Japan's median age of 49.1 years starkly contrasts with the younger demographics of many other nations, emphasizing a growing gap between aging societies and those with more balanced age distributions. Germany and Italy, with median ages of 47.8 and 47.5 years respectively, also reflect this trend, suggesting that Western Europe is experiencing similar demographic shifts. The implications of these aging populations are profound, as countries grapple with the economic burden of supporting a larger retired demographic while facing shrinking workforces. This trend may lead to increased reliance on automation and immigration to sustain economic productivity, as seen in Japan's attempts to address its demographic crisis.

Source: Wikipedia

Key Findings

Auto-computed highlights from this dataset

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Japan leads with 49 in 2026.

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Average value in 2026: 46 · median: 46.

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Gap in 2026: Japan is 1.2× larger than Sweden.