"Population density. Municipalities with more than 20,000 inhabitants" Catalonia Barcelona "Source: Idescat, based on the INE Population and Housing Census." Institut d'Estadística de Catalunya https://www.idescat.cat/indicadors/?id=aec&n=15228&fil=1&lang=en ,Population,Surface area km²,Density inh./km²,Ranking by number of inh. 2023,1655956,101.4,16339.0,1