The demographics of Greece

Greek demographics is one of the subjects of greatest interest to European researchers, because this Mediterranean country faces three major pressures at once: natural population decline, rapid ageing and strongly fluctuating migration.

According to the Hellenic Statistical Authority (ELSTAT), the resident population of Greece as at 01/01/2025 was 10,372,335, a slight fall of 0.03% on the same date the previous year. This article analyses the structure of Greek demographics based on the latest official figures, while setting out the consequences for the labour market, the pension system and the country’s migration policy.

Population size in the picture of Greek demographics

On data published in December 2025 by theHellenic Statistical Authority (ELSTAT), the resident population of Greece on 01/01/2025 was 10,372,335, comprising 5,094,094 men and 5,278,241 women. This is 3,429 fewer than the revised figure of 10,375,764 at the start of 2024. It is the latest in a run of consecutive years of population decline, reflecting a trend common to many Southern European countries.

The direct causes lie in two opposing factors. On one hand, the natural decrease reached 57,564, with 68,309 births against 125,873 deaths. On the other, a positive net migration balance of 54,135 slowed the decline. Without immigration to offset it, the population fall could have been 17 times the current figure.

On geographical distribution, Greece covers 131,957 km² with a population density of around 79 per km². The population is concentrated mainly in two large urban regions. The Attica region around the capital Athens holds around 36.4% of the national population, while Central Macedonia centred on Thessaloniki holds 17.1%. The remaining eleven regions share between 1.8% and 6.5% each.

Age structure and Greece’s ageing index

Age structure is the most striking feature of Greek demographics today. The figures for 01/01/2025 show the 0–14 age group at 12.8% of the total population, the 15–64 group at 63.5% and those aged 65 and over at 23.7%. The ageing index, the ratio of those over 65 to those under 15, stands at 185.4. This means that for every 100 children under 15 there are more than 185 older people.

This ageing index places Greece among the oldest countries in the European Union, on a par with Italy, Portugal and Germany. Over the past 30 years, the share of those over 65 has risen from around 10.9% in 1961 to nearly 24% today, reflecting rising life expectancy alongside a long period of low fertility.

The total fertility rate is the decisive factor in this trend. Greece currently has a fertility rate of around 1.2–1.3 children per woman, far below the replacement level of 2.1. The crude birth rate is only around 6.6 births per 1,000 people, among the lowest in the world. The consequence is a steadily shrinking labour force, putting great pressure on the pension and social security systems.

ELSTAT projections show the decline continuing. Without a breakthrough in fertility or migration policy, Greece’s population could fall to around 8.9 million by 2050. The 15–64 age group is projected to fall to around 54.9%, while the over-65 group continues to expand.

Urbanisation and the major cities

Greece is among the highly urbanised countries. More than two-thirds of the Greek population lives in urban areas, on UNICEF Greece figures drawn from ELSTAT data. Some sources estimate urbanisation even higher, at around 80% when satellite towns and peri-urban belts are counted.

The two largest cities form the backbone of the Greek urban system. The Athens metropolitan area has a population of around 4 million and is the political, administrative, financial and cultural centre. Thessaloniki, with around 1 million, serves as the northern gateway, connecting to the Balkans and acting as an important commercial and port centre.

Beyond the two main poles, the Greek urban network comprises mid-sized cities such as Patras, Heraklion (on Crete), Larissa, Volos and Ioannina. These cities usually have specialised functions: ports, tourism, higher education or large-scale agriculture. They also attract considerable foreign investment through theGreece Golden Visa, particularly in the mid-market property segment.

Urbanisation in Greece has its own character: it is uneven, concentrating strongly in certain regions. This creates wide gaps in population density, job opportunities and access to public services between the large urban regions and the islands and remote mountain areas. Many small islands off the Aegean and Ionian coasts have recorded steady population decline decade by decade through internal migration, highlighting the imbalance in Greek demographics between core and peripheral areas.

Language, religion and ethnic composition

The official and only indigenous language of Greece is Greek, an Indo-European language with a continuous written history of more than 3,400 years. Modern Greek descends from the Koine of the Hellenistic period and remains the medium of all education, administration, media and public life in the country.

Alongside Greek, certain minority communities maintain their original languages in internal life. The Turkish community in Western Thrace speaks Turkish. The Albanian and Roma groups use Albanian and Romani. In addition, recent immigration has brought languages such as Russian, Arabic, Urdu and the South Asian languages into urban life in Athens and Thessaloniki.

On religion, the Greek Constitution recognises Eastern Orthodoxy as the country’s “prevailing religion”. The overwhelming majority of the Greek population belongs to the Church of Greece, an autocephalous Eastern Orthodox church led by a synod of 12 bishops headed by the Archbishop of Athens. The proportion of Orthodox faithful is estimated at more than 90% of the total population.

The religious minorities comprise Muslims (mainly Sunni) concentrated in Western Thrace and the Dodecanese, mostly of Turkish origin. The Roman Catholic and Greek Catholic communities are found mainly in Athens and the Ionian islands formerly under Italian rule. Greece also has a small Jewish community of around 5,500 people, concentrated mainly in Athens, Thessaloniki, Larissa, Volos, Chalkis, Ioannina, Trikala and Corfu. Most of the historic Jewish community of Thessaloniki was wiped out during the Nazi German occupation of 1941–1944.

On ethnic composition, indigenous Greeks make up around 91.6% of the population, followed by Albanians (around 4.4%) and other groups comprising Roma, people of Slav-Macedonian origin and newer immigrant communities from Asia and Africa. Note that official Greek censuses do not collect ethnicity by self-identification, but record statistics based on nationality.

Migration trends and labour force change

Migration is an increasingly important variable in Greece’s population structure. According to ELSTAT, in 2024 the country recorded a positive net migration balance of 54,135, slowing the population decline caused by low fertility. Immigration comes mainly from Albania, South Asia, the Middle East and, recently, Ukraine because of the war.

In the other direction, Greece has faced considerable brain drain since the sovereign debt crisis of 2010–2018. Many young professionals, technology engineers and doctors have left to work in Germany, Britain, the Netherlands and the Gulf states. According to theEuropean Commission (Eurydice), emigration continues to put pressure on the pension fund and public services, although it has eased from the peak of the crisis.

The recent positive migration balance is partly thanks to the investment attraction programme.Greece Golden Visais the residence programme through property investment for citizens from outside the European Union, creating a steady flow of long-term residents from Chinese, Turkish, Russian, Lebanese and, recently, Vietnamese investors. The programme not only attracts property investment capital but helps replenish the higher-income population with demand for premium services.

In addition, Greece lies on an important Mediterranean migration route, meaning the country has to handle large numbers of asylum seekers and applicants for international protection. This pressure is distributed between reception centres on the Aegean islands (Lesvos, Samos, Chios, Leros, Kos) and the mainland. New European Union policies since 2024 on border management and responsibility sharing are gradually easing the burden falling on Greece alone.

Marriage, households and social structure

Greek household structure shows a clear post-traditional trend. On ELSTAT data compiled by UNICEF Greece, around 52% of nuclear households are couples with children, 15% are single-parent households with children and around 0.4% are legally cohabiting unmarried couples. These figures show the traditional household model of a married couple with several children gradually shrinking, giving way to more varied household forms.

The 2024 ELSTAT figures also record a considerable fall in the number of marriages and a rise in the divorce rate. The average age at marriage continues to rise, reflecting the trend of delaying family formation for economic, educational and career reasons. The age at which Greek women have their first child now usually falls between 30 and 32.

The sex ratio shows women slightly in the majority at 50.9% against 49.1% men, largely through the difference in life expectancy. Life expectancy in Greece is among the higher figures in Europe, with women above 83 and men around 78, on recent Eurostat data.

What it means for investors and settlers

The features of Greek demographics carry several notable practical implications for investors and those planning to settle. First, an ageing population creates strong demand for private healthcare, retirement holiday property and financial products for retirees. This is a stable market segment, less volatile across the economic cycle.

Second, the trend of urbanisation concentrating in Athens and Thessaloniki keeps the property market in these two areas highly liquid. Combined with theGreece Golden Visaprogramme, foreign investors can both meet the residence threshold and tap the potential of long-term or holiday letting.

Third, prolonged low fertility means Greece will continue policies to attract foreign nationals with skills, investment and financial resources for years to come. This gives the residence by investment programmes stability in policy and process. Overall, demographic factors are pushing Greece towards ever greater openness to selective international residence.

Summary

Greek demographics in 2025 is a picture of indigenous population decline running alongside replenishment through international immigration. With 10.37 million people, an ageing index of 185.4, fertility of around 1.2–1.3 and more than two-thirds of the population living in towns, Greece is entering a period of profound demographic transition. These features of Greek demographics directly affect the country’s labour, pension, health and migration policies over the next one to two decades.

For investors interested in property or the residence programmes in Greece, a firm grasp of the population structure, geographical distribution and migration trends is an important basis for assessing risk and market potential. Readers may also consult the related articles onLife in GreeceandThe Greek citizenship testfor a comprehensive view before deciding on investment and settlement.