📝 All the Countries Where Seniors Are a Significant Share of the Population

Key Takeaways

• With nearly 37 million people aged 65+, Japan’s older population has been the focus of headlines for many years.
• In fact, Japan has the fourth-most seniors overall (after China, India, and the U.S.)
• The latter three don't appear in this list since their older adult share is still below 20%.
• Meanwhile, Italy, Portugal, and Germany all have over 23% of their populations aged 65+, signaling Europe’s broader trends.
• For reference, Europe is the oldest continent by median age (44).

❗Data Note

These figures are estimates for 2025, made under the medium variant projection in the UN World Population Prospects (2024).