Monaco is the country with the highest median age in the world. The population has a median age of around 57 years, which is around six years more than in Japan and Saint Pierre and Miquelon – the other countries that make up the top three. Southern European countries make up a large part of the top 20, with Italy, Slovenia, Greece, San Marino, Andorra, and Croatia all making the list. Low infant mortality means higher life expectancy Monaco and Japan also have the lowest infant mortality rates in the world, which contributes to the calculation of a higher life expectancy because fewer people are dying in the first years of life. Indeed, many of the nations with a high median age also feature on the list of countries with the highest average life expectancy, such as San Marino, Japan, Italy, and Lichtenstein. Demographics of islands and small countries Many smaller countries and island nations have populations with a high median age, such as Guernsey and the Isle of Man, which are both island territories within the British Isles. An explanation for this could be that younger people leave to seek work or education opportunities, while others choose to relocate there for retirement.

In 2024, Italy was the European country with the oldest population, recording a median age of 48.7 years, closely ahead of Bulgaria and Portugal, with 47 years. In general, almost all European countries have a median age above 40 years old. Only Azerbaijan, Turkey, Armenia, and Kosovo had a median age below 35 years old. Kosovo was the youngest territory of the continent in terms of median age.

In 2024, Japan was estimated to have the highest median age of the G7 countries at 49.4 years. Italy followed behind with 47.9 years. On the other hand, the United States had the lowest at just 38.3. Germany had an increasing median age until 2016, before the curve started to flatten. This is because of the increased number of immigrants arriving in the country at the time, particularly in the aftermath of the Syrian Civil War.

The ranking of countries by average age of the population shows at one end of the spectrum the countries with the highest average age of the population. At the other end are the countries with the youngest populations: they usually have high birth rates and not very long life expectancy.

This horizontal bar chart displays median age (year) by country full name using the aggregation average, weighted by population. The data is about countries.

According to 2023 estimations, Monaco's population had the highest median age of 56.2 years worldwide. Furthermore, the lowest listed countries are all from the African continent, with Niger recording a median age of nearly 15 years old.

Censo de Población: Population and median age by gender and country of birth (Spain/foreign). Annual. Municipalities.

This dataset is about countries per year in Japan. It has 64 rows. It features 3 columns: country, and median age.

In 2023, the median age of the population in Thailand was 39.7 years, which was the oldest median age across Southeast Asia. Comparatively, the median age of Timor-Leste's population was 21 years in 2023.

This bar chart displays median age (year) by country full name using the aggregation average, weighted by population in Europe. The data is about countries.

This statistic shows the leading countries with the highest projected median age in 2050. By 2050, the Republic of Korea is projected to have the population with the highest median age, at 56.5 years.

This scatter chart displays GDP (current US$) against median age (year). The data is about countries.

The lowest median age of the population in the Commonwealth of Independent States (CIS) was recorded in Tajikistan, at around 22.1 years in 2024. Among the CIS countries, Ukraine, and Belarus, the latter had the highest median age, at below 43 years. In 2100, the highest figure was expected in Armenia, at 53 years. Between 2024 and 2100, Armenia's median age of the population was forecast to grow by more than 18 years. The median age divides the population into two equal groups, where one half is older and the other half is younger.

This horizontal bar chart displays median age (year) by country full name using the aggregation average, weighted by population in Oceania. The data is about countries.

This statistic shows the median age of the population among Middle Eastern countries in 2020. In Kuwait, the median age of the population was 36.8 years old in 2020, in comparison with a median population age of 20.8 in Palestine.

This dataset is about countries in Europe. It has 44 rows. It features 3 columns: country full name, and median age.

This statistic shows the countries with the lowest projected median age in 2050. By 2050, Niger is projected to have the population with the lowest median age at 19 years old.

This dataset is about countries per year in Korea. It has 64 rows. It features 3 columns: country, and median age.

In 2023, the median age of the population in Sri Lanka was 32.8 years. Contrastingly, the median age of the population in Pakistan was 20.3 years in 2023.

This dataset is about countries. It has 194 rows. It features 2 columns including median age. It is 100% filled with non-null values.