section_path: Demographics
section_name: Demographics
paragraph_text: Demographics
  
  The population of the City of Paris was 2,102,650 in January 2023, down from 2,165,423 in January 2022, according to the INSEE, the French statistical agency. Between 2013 and 2023, the population fell by 122,919, or about five percent. The Mayor of Paris, Anne Hidalgo, declared that this illustrated the "de-densification" of the city, creating more green space and less crowding. Despite the drop, Paris remains the most densely-populated city in Europe, with 252 residents per hectare, not counting parks. This drop was attributed partly to a lower birth rate, the departure of middle-class residents and the possible loss of housing in Paris, due to short-term rentals for tourism.
  
  Paris is the fourth largest municipality in the European Union, after Berlin, Madrid and Rome. Eurostat places Paris (6.5 million people) behind London (8 million) and ahead of Berlin (3.5 million), based on the 2012 populations of what Eurostat calls "urban audit core cities". The population of Paris today is lower than its historical peak of 2.9 million in 1921. The principal reasons are a significant decline in household size, and a dramatic migration of residents to the suburbs between 1962 and 1975. Factors in the migration included de-industrialisation, high rent, the gentrification of many inner quarters, the transformation of living space into offices, and greater affluence among working families. Paris's population loss came to a temporary halt at the beginning of the 21st century. The population increased from 2,125,246 in 1999 to 2,240,621 in 2012, before declining again slightly in 2017, 2018, and again in 2021.
  
  Paris is the core of a built-up area that extends well beyond its limits: commonly referred to as the agglomération Parisienne, and statistically as a unité urbaine (a measure of urban area), the Paris agglomeration's population of 10,785,092 in 2017 made it the largest urban area in the European Union. City-influenced commuter activity reaches further, in a statistical aire d'attraction de Paris, "functional area", a statistical method comparable to a metropolitan area,), that had a population of 13,024,518 in 2017, 19.6% of the population of France, and the largest metropolitan area in the Eurozone.
  
  In 2012, according to Eurostat, the EU statistical agency, in 2012 the Commune of Paris was the most densely populated city in the European Union. There were 21,616 people per square kilometre within the city limits, the NUTS-3 statistical area, ahead of Inner London West, which had 10,374 people per square kilometre. In the same census, three departments bordering Paris, Hauts-de-Seine, Seine-Saint-Denis and Val-de-Marne, had population densities of over 10,000 people per square kilometre, ranking among the 10 most densely populated areas of the EU.