From the thirteenth century Стокгольм is the major economic center of the country.
Today it is the largest Swedish city with a population of 842 376 people (at the beginning of 2009), which has self-government. In a Suburban area of Stockholm has 1 252 020 people (2005 data) is the most populated area of Sweden as a whole. At the same time, the population of the Stockholm Metropolitan area is 1 949 516 people. Historically, this territory was very important for Sweden. The city was built on fourteen small, not connected with each other Islands, whence it was possible to block the access of vessels in lake mälaren.