In the following chart, the number of inhabitants includes those living in the entire municipality (''kunta/kommun''), not just in the built-up area. The land area is given in km2, and the density in inhabitants per km2 (land area). The figures are as of . The capital region – comprising Helsinki, Vantaa, Espoo and Kauniainen – forms a continuous conurbation of over 1.1 million people. However, common administration is limited to voluntary cooperation of all municipalities, e.g. in Helsinki Metropolitan Area Council.