Greater Helsinki

In the strictest sense, the Finnish Capital Region consists of four municipalities with city title, Helsinki, Vantaa, Espoo and Kauniainen, whose total population is about 1.1 million (2014). This area is most often called the Capital region in English, Pääkaupunkiseutu in Finnish, and Huvudstadsregionen in Swedish, although the use of the terms is not especially consistent. The vast majority of the inhabitants live in the urban areas of the cities, but within the boundaries of these cities there are also suburban and rural areas.

Commonly about ten more municipalities are considered to be part of Greater Helsinki, as they can be considered to be commuter towns and exurbs of Helsinki. When Hyvinkää, Järvenpää, Kerava, Kirkkonummi, Nurmijärvi, Sipoo, Tuusula, Mäntsälä, Pornainen and Vihti are included, the number of inhabitants rises to 1.4 million. All of the municipalities belong to the region of Uusimaa. Of these, Järvenpää, Kerava, Tuusula, Nurmijärvi, Sipoo, Kirkkonummi, Mäntsälä and Vihti have parts of the urban area within them. Additionally, the cities of Porvoo, Lohja, and to some extent Riihimäki, which have very close ties, motorway and (in the case of Riihimäki) commuter train accesses, and are fairly close to the capital, are nowadays often included in regional planning, which raises the total population to about 1,550,000.

As a part of the "Urban audit" project, Eurostat has attempted to standardise the concept of a 'metropolitan area'. According to this study the Metropolitan area of Helsinki consists of the kernel of Helsinki: Helsinki, Espoo, Vantaa, and Kauniainen. The Helsinki Larger Urban Area (Helsingin seutu in Finnish) consists of 12 cities and municipalities: the kernel of Helsinki and the aforementioned eight municipalities.[2]

Statistics Finland define the commuter belt of Helsinki (Helsingin työssäkäyntialue, Helsingfors pendlingsområde) to include a total of 24 municipalities, with a land area of 7,359.80 km² and a population of 1,431,108 as of 31 December 2007.[3][4] In addition to that, there are people from as far as Lahti and even Tampere commuting to Helsinki daily.

Statistics Finland also defines the Helsinki urban area according to the official Finnish definion of an urban area (taajama in Finnish). Urban areas in Finland are defined as inhabited areas of at least 200 people with a maximum distance of 200 metres (660 ft) between buildings.[5][6] The Helsinki urban area is the largest of its kind in Finland, and encompasses land throughout Greater Helsinki, with notable gaps around forests and other less-densely populated areas.