Demographics
According to Barcelona's City Council, Barcelona's population as of 1 June 2006 was 1,673,075 people, It is the main component of an administrative area of Greater Barcelona, with a population of 3,218,071 in an area of 636 km² (density 5,060 hab/km²). The population of the urban area was 4,223,000. It is the central nucleus of the Barcelona metropolitan area, which relies on a population of 5,083,000.
The population density of Barcelona was 15,779 inhabitants per square kilometre (40,870 /sq mi), with Eixample being the most populated district. 62% of the inhabitants were born in Catalonia, with a 23.5% coming from the rest of Spain. Of the 13.9% from other countries, a proportion which has more than tripled since 2001 when it was 3.9%, the majority come from (in order) Ecuador, Peru, Morocco, Colombia, Argentina, Pakistan and China. The city also has the largest Jewish community in Spain, with an estimated 3,500 Jews living in the city.
As an official language, Spanish is understood almost universally in Barcelona. In addition, 95% of the population understand Catalonia's own native Catalan language, while 74.6% can speak it, 75% can read it, and 47.1% can write it, thanks to the linguistic immersion educational system. While most of the population state they are Roman Catholic (208 churches), there are also a number of other groups, including Evangelical (71 locations, mostly professed by Roma), Jehovah's Witnesses (21 Kingdom Halls) and Buddhists (13 locations), and a number of Muslims due to immigration.
In 1900, Barcelona had a population of 533,000 people, which grew steadily but slowly until 1950, when it started absorbing a high number of people from other less-industrialized parts of Spain. Barcelona's population peaked in 1979 with 1,906,998 people, and fell throughout the 1980s and 1990s as more people sought a higher quality of life in outlying cities in the Barcelona Metropolitan Area. After bottoming out in 2000 with 1,496,266 people, the city's population began to rise again as younger people started to return, causing a great increase in housing prices.
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