Top 100 Countries by Median Age, 2025

Median age by country 2025: distribution context

The first table shows the highest-median-age entries from the same ranking used in the main Top 100. The second table shows selected lower-end entries from the full worldwide list, where median ages are much lower and ranks sit far outside the Top 100.

Methodology: how median age by country is measured

The primary methodology sources are UN World Population Prospects 2024 and the UN Population Division Data Portal. The table values are taken from a StatisticsTimes country-and-territory ranking compiled from that UN release. Median age is the age that divides a population into two equal halves. It is not the same as average age, and it is not a measure of old-age dependency by itself. It condenses the age distribution into one comparable number for countries and territories.

The main table contains the Top 100 high-median-age entries. The lower-end comparison sample uses the same global ranking but is not part of the Top 100 table. WHO indicator metadata is used for the definition of median age. The CIA World Factbook and Our World in Data are secondary context sources, not the source of the ranking values. Country and territory names follow source naming where possible. Small territories and dependencies are kept when the source includes them, because they are part of the published comparison.

The main limitation is that median age is a summary statistic. Two countries can share a similar median age while having very different migration profiles, fertility trends, pension burdens, or elderly survival patterns. Another limitation is scope: if a ranking includes territories alongside sovereign states, the top and bottom ends may be influenced by very small populations. Holy See, Monaco and Saint Helena are small or unusual-population entries, so they should not be interpreted in the same way as large national age structures. Readers should separate demographic structure from market size or state capacity when interpreting the list.

Insights from the median age by country ranking

The clearest pattern is geographic: Europe, East Asia and several small territories dominate the high-median-age end. Japan, Italy, Portugal, Greece, Germany and the Republic of Korea are high because small birth cohorts have persisted for many years while survival into older ages remains strong. For public budgets, that usually means a larger retired population relative to the workforce; for employers, it means fewer young entrants unless migration or later retirement offsets the gap.

Lower-median-age countries usually have large child and youth cohorts. Countries such as the Central African Republic, Chad, Niger, Somalia and the Democratic Republic of the Congo have very low median ages because fertility remains high and the age pyramid is still broad at the base. That demographic structure can support future growth only if schools, health systems and job creation expand quickly enough.

The middle of the high-median-age table shows why regional averages can be misleading. China is already above 40 years, Thailand is high in the ranking, and Singapore sits lower than a simple fertility-only interpretation would suggest because migration changes the resident age structure. In the Americas, several Caribbean territories appear far above many mainland countries.

What this means for readers

Median age is useful for reading migration pressure, labor supply, housing demand, healthcare needs, pensions, education demand and consumer markets. An older country usually signals slower household formation, a larger retirement economy and tighter long-run labor supply. A younger country often signals stronger demand for schools, entry-level jobs, urban expansion and basic infrastructure. The indicator helps explain why two countries with similar GDP per capita can still face different growth paths and fiscal pressures.

FAQ about median age by country 2025

Sources for the median age by country 2025 ranking

• United Nations Population Division — World Population Prospects 2024, primary methodology source for the population estimates: https://population.un.org/wpp/
• UN Population Division Data Portal — official access point for country and territory population indicators: https://population.un.org/dataportal/
• StatisticsTimes — compiled 2025 country-and-territory ranking from UN World Population Prospects 2024; used for the extracted ranking values in the table: https://statisticstimes.com/demographics/countries-by-median-age.php
• WHO indicator metadata — definition of population median age, sourced from UN Population Division: https://www.who.int/data/gho/indicator-metadata-registry/imr-details/116
• CIA World Factbook — secondary country comparison on median age for cross-checking: https://www.cia.gov/the-world-factbook/field/median-age/country-comparison/
• Our World in Data — median age dataset page for long-run context: https://ourworldindata.org/grapher/median-age