The province in which the Catalan capital, Barcelona, is located has experienced a significant increase in population since 1996. In January 2023, the inhabitants of the province of Barcelona amounted to nearly *** million, which is also the highest figure registered during the period under consideration.

Population of Barcelona according to the Municipal Register of Inhabitants on January 1 of each year

Spain Population: Catalonia: Barcelona data was reported at 5,606,913.000 Person in 2017. This records an increase from the previous number of 5,576,037.000 Person for 2016. Spain Population: Catalonia: Barcelona data is updated yearly, averaging 5,416,447.000 Person from Dec 1997 (Median) to 2017, with 21 observations. The data reached an all-time high of 5,606,913.000 Person in 2017 and a record low of 4,666,271.000 Person in 1997. Spain Population: Catalonia: Barcelona data remains active status in CEIC and is reported by National Statistics Institute. The data is categorized under Global Database’s Spain – Table ES.G001: Population: at 1st of January.

Demographic indicators. Population density (inhabitants / ha) of the city of Barcelona

As of January 2025, Catalonia's population stood at over eight million, making it the second most populated autonomous community in Spain. Catalonia had 682,998 inhabitants aged between 45 and 49 years old, the largest age group. Meanwhile, children aged zero to four years old totaled 290,941.

Table of INEBase Barcelona: Population by municipality and sex. Annual. Municipalities. Official population figures of the Spanish Municipalities: Revision of the Municipal Register

Analysis of ‘Barcelona: Population by municipality and sex. DPOP (API identifier: 2861)’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from http://data.europa.eu/88u/dataset/urn-ine-es-tabla-t3-29-2861 on 08 January 2022.

--- Dataset description provided by original source is as follows ---

Table of INEBase Barcelona: Population by municipality and sex. Annual. Municipalities. Official population figures of the Spanish Municipalities: Revision of the Municipal Register

--- Original source retains full ownership of the source dataset ---

Population of Barcelona aggregated by continent of birth, sex and five-year age groups according to the Municipal Register of Inhabitants on January 1 of each year

With over seven million inhabitants, Madrid ranked as the most populated province in Spain as of 2025. In the second place was Barcelona, with a population of almost six million people. Only 14 out of the 52 Spanish provinces had over a million inhabitants at that time.

Population of Barcelona aggregated by five-year age groups according to the Municipal Register of Inhabitants on January 1 of each year

Chart and table of population level and growth rate for the Barcelona-Puerto La Cruz, Venezuela metro area from 1950 to 2025.

Barcelona city areas with the highest population exposed to the impact of heat by age groups

Barcelona population projected based on the Municipal Register of Inhabitants as of January 1 and in the growth scenarios of Idescat (Institut d’Estadística de Catalunya). The projection base corresponds to the year of the name of the resource

Population of Barcelona registered alone at home aggregated by sex and five-year age groups by the Municipal Register of Inhabitants as of January 1

Population of Barcelona aggregated by group of nationality (Spain, part of EU or other), sex and five-year age groups according to the Municipal Register of Inhabitants on January 1 of each year

Brazil Population Census: Northeast: Rio Grande do Norte: Barcelona data was reported at 3,950.000 Person in 2010. This records an increase from the previous number of 3,928.000 Person for 2007. Brazil Population Census: Northeast: Rio Grande do Norte: Barcelona data is updated yearly, averaging 3,939.000 Person from Jul 1996 (Median) to 2010, with 4 observations. The data reached an all-time high of 3,990.000 Person in 2000 and a record low of 3,884.000 Person in 1996. Brazil Population Census: Northeast: Rio Grande do Norte: Barcelona data remains active status in CEIC and is reported by Brazilian Institute of Geography and Statistics. The data is categorized under Brazil Premium Database’s Socio and Demographic – Table BR.GAC051: Population Census: by Municipality: Northeast: Rio Grande do Norte.

Aggregate data per housing block of the city of Barcelona, with information derived from local population, urban planning and building registers, among others

Population of Barcelona aggregated by group of nationality (Spain, part of EU or other) and sex according to the Municipal Register of Inhabitants on January 1 of each year

Official population figures of the Spanish Municipalities: Revision of the Municipal Register: Barcelona: Population by municipality and sex. Annual. Municipalities.

The data refers to the reading registers of the inhabitants who live in Barcelona in the first of January every year, classified by age year by year and by genre.

From year 2007 to 2015, the readings refer to the 30th of June of every year and since 2016 it refers to the 1st of January.