The population of Catalonia on 1 January 2018 amounted to 7,534,813 inhabitants, according to provisional data of Population Estimates produced by Idescat. This figure represents a year-over-year increase of 38.537 inhabitants (0.5%) compared to 2017, thus confirming the growth tendency begun in 2015.
By territory, the Metropolitan Area saw the greatest increase, 26,251 inhabitants, with a growth of 0.5%. By contrast, Les Terres de l'Ebre was the area with the greatest loss of population, 438 inhabitants, with a decrease of 0.2%.
The advance of Population Estimates has been calculated based on the Population Estimates for 1 January 2017 and estimated data for demographic flows for 2017. The advanced results are available for Catalonia, its provinces and all 8 areas of the Territorial Plan.
This provisional results will remain valid until next December, when Idescat replaces them by the definitive postcensal estimates, which will be calculated once the figures of births, deaths and migrations are made available for the reference year.
The Population Estimates is a statistical operation performed every year, which provides a headcount of the population residing in Catalonia. They offer data of the residents in Catalonia, provinces, areas of the Territorial Plan, counties and Aran, and municipalities of 50,000 inhabitants or more, classified by sex and age. The results are coherent with the Population Census and the demographic movement (births, deaths and migration). The Population Estimates allow different demographic and socio-economic indicators to be calculated each year.