Greece’s median age will rise from 47 in 2025 to 52.6 by the year 2100, according to new population projections from Eurostat. The shift places Greece among the fastest and longest aging populations in Europe.
The increase will not follow a straight path. Eurostat’s baseline scenario shows Greece’s median age climbing steadily through the middle of the century, reaching nearly 53 by the 2070s.
It then dips slightly during the 2080s before Greece’s median age starts rising again, closing the century at 52.6. Researchers say the pattern reflects the movement of large and small birth generations through the population over time.
Greece already has one of the older populations in Europe. Its median age of 47 in 2025 sits well above the European Union average of 44.9. By 2100, Greece is expected to stay older than the bloc, whose median age is projected to reach about 51.5.
Greece’s median age rise compared with Italy, Spain, and Ireland
Other southern European countries follow a similar trend. Italy holds the highest median age in Europe across the whole period, climbing from 49.1 in 2025 to 54.5 in 2100. Cyprus and Spain also age faster than Greece, ending the century above 54 and 53.
How old is the population projected to be by 2100? 👵👴
More info 👉https://t.co/GO8eIg56e0 pic.twitter.com/sFNnDLiZW4
— EU_Eurostat (@EU_Eurostat) July 8, 2026
Ireland offers a contrast. Its population starts out the youngest in the European Union, with a median age of just 39.6 in 2025. Yet Ireland’s median age is projected to climb quickly enough to match Greece’s 52.6 by 2100.
Researchers note that fast-aging countries like Ireland can close the gap with already-old countries like Greece within a few generations.
Old-age dependency ratio shows Greece aging faster than the EU
The aging trend shows up in other measures, too. The share of Greece’s population aged 65 and older is projected to grow from about 24 percent in 2025 to nearly 35 percent by 2100. The old-age dependency ratio, which compares older residents with working-age adults, is projected to nearly double, rising from 37 to about 65.
The European Union average moves more slowly on this measure, climbing from 34 to about 62 over the same span. That means Greece could end up with roughly two working-age adults for every retiree by 2100, down from about three today.
Eurostat’s figures cover 2025 through 2100 and are built on current trends in births, deaths, and migration. They give a long-term view of how Greece, and Europe as a whole, is set to change over the rest of the century.
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