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, 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.

Continuous Register Statistics: Population and Average Age by country of birth and sex. Annual. Provinces.

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.

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

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

Taiwan, Japan, South Korea, the United States, the United Kingdom, Germany, France, Norway, Sweden, the Netherlands, Switzerland, Austria, Italy, and Spain and other 14 countries' historical and estimated median ages.

List of African countries by median age of the total population and male and female median ages. Niger with an average age of 14.8 years old is the youngest country in Africa and the youngest country in the world.

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.

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

This dataset provides values for RETIREMENT AGE MEN reported in several countries. The data includes current values, previous releases, historical highs and record lows, release frequency, reported unit and currency.

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 bar chart displays median age (year) by ISO 2 country code using the aggregation average, weighted by population in Europe. The data is about countries.

List of African countries by median age. Niger average age is 14.8, the youngest African country and the youngest country in the world. The African islands of Seychelles is the oldest African country with an average age of 36.8.

This dataset is about countries per year in Latvia. It has 64 rows. It features 4 columns: country, fertility rate, and median age.

Population and Housing Censuses: Average age by sex and country of nationality. National.

Table of INEBase Population and Average Age by country of birth and sex. Annual. Provinces. Continuous Register Statistics

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

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