Countries by Median Age 2025

About This Dataset

Countries ranked by the median age of their population in 2025 according to UN World Population Prospects data. Monaco and Japan have the world's oldest populations by median age — a consequence of ultra-low birth rates, high life expectancy, and in Monaco's case a wealthy resident base that disproportionately attracts older retirees seeking favourable tax conditions, pushing its median age above 55.

✨ AI Insight

The stark contrast between Monaco's median age of 55.4 years and Japan's 49.5 years illustrates the significant demographic challenges faced by these nations. Monaco's status as a tax haven attracts older retirees, inflating its median age. Meanwhile, Japan, despite its advanced economy, grapples with declining birth rates and an aging workforce. Countries like Germany (46.6 years) and Italy (46.5 years) are not far behind, indicating a broader trend across Europe where aging populations could strain social services and economic productivity. The data suggests that without substantial policy changes to encourage higher birth rates or immigration, these trends are likely to persist.

Source: Wikipedia

Key Findings

Auto-computed highlights from this dataset

🏆

Monaco leads with 55 in 2025.

📊

Average value in 2025: 47 · median: 46.

↔️

Gap in 2025: Monaco is 1.3× larger than Finland.