In 2023, there were 5 metropolitan regions in the EU with over 5 million people.

The EU's largest metropolitan region in 2023 was Paris in France, with a population of 12.4 million people, followed by the Spanish metropolitan regions of Madrid and Barcelona with 6.9 and 5.8 million inhabitants, respectively. Berlin, with a total population of 5.5 million, and the Ruhrgebiet metropolitan region in Germany (5.1 million residents), completed the top 5.

Largest metropolitan regions EU, 2023, million inhabitants. Chart. See link to full dataset below.

Source dataset: met_pjanaggr3

Over the last 5 years (from 2018 to 2023), the most significant population growth was observed in Madrid (+322 000), Barcelona (+282 000), and Berlin (+222 000).

Among the top 10 largest metropolitan regions, Barcelona, Madrid, and Amsterdam experienced the highest relative growth rates, with their populations expanding by 5%. On the other hand, the Italian capital region of Rome was the only metropolitan region that experienced a noticeable population decline compared with 2018 (-129 000), while Milan's population remained relatively stable (-6 000).

This article marks the start of the 10th European Summit of Regions and Cities taking place on 18 and 19 March 2024 in Mons, Belgium.

For more information

Methodological notes

  • The metropolitan typology is applied at the level of nomenclature of territorial units for statistics (NUTS) level 3 regions and identifies metropolitan regions in the European Union (EU). These regions are defined as urban agglomerations (NUTS level 3 regions or groups of NUTS level 3 regions) where at least 50 % of the population lives inside a functional urban area (FUA) that is composed of at least 250 000 inhabitants.
  • Paris, 2023: provisional data.

If you have any queries, please visit our contact us page.