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.

This dataset contains the median age of a country starting from 1950 to 2050 every 5 years. The values for the years before the current time i.e. 2020 are calculated from the data provided by these countries, the rest of the values starting from 2025 are just a prediction keeping in mind the current trend.

This data could well be used with the COVID-19 open dataset on Kaggle provided by @imdevskp which could be found here: https://www.kaggle.com/imdevskp/corona-virus-report.

Both these data combined can result in effective research on the dependence of COVID-19 virus with age and predicting future median age of the countries seeing the current trend set up by the virus as the death count will hugely impact a country's average population age.

Apart from that, this dataset could also be used independently to predict the median ages in the future and further analysis could lead to which country could be more prone to viruses like these in the future.

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.

Median age statistics for countries worldwide

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

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 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.

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

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 ISO 3 country code using the aggregation average, weighted by population in Europe. The data is about countries.

In 2024, Japan was estimated to have the highest median age of the G7 countries at **** years. Italy followed behind with **** years. On the other hand, the United States had the lowest at just ****. 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.

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

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

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

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

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

As of 2023, the median age in Iraq was ****, making it the oldest median age in the Middle East. In comparison, the meidan age in yeman was **** years.

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

This statistic shows the median age of the world population from 1950 to 2100. By 2100, the global median age is projected to be 41.9 years of age.