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Pääkaupunkiseutu is Finnish for Capital Region (in Swedish: Huvudstadsregionen), which is a set of Finnish municipalities around Helsinki, whose population to a great extent commute to Helsinki for work.
In statistical context, Suur-Helsinki or Storhelsingfors ("Greater Helsinki") is taken to include also the municipalities of Hyvinkää (Hyvinge) and Vihti beside the Capital Region, with a combined population exceeding 1.2 millions.
In the center lies Helsinki Metropolitan Area, a conurbation with close to 1 million inhabitants. With exception for the municipality of Sipoo, all of the Capital Region and Greater Helsinki belongs to the administrative region of Uusimaa.
| Municipality | Area | Population (2004) | Population density |
|---|---|---|---|
| Metropolitan Area | 745 km² | 975,922 | 1,310.0/km² |
| Espoo/Esbo | 312 km² | 224,231 | 718.7/km² |
| Helsinki/Helsingfors | 186 km² | 559,330 | 3,007.2/km² |
| Kauniainen/Grankulla | 6 km² | 8,322 | 1,387.0/km² |
| Vantaa/Vanda | 241 km² | 184,039 | 736.6/km² |
| Outer suburbs | 1,379 km² | 188,396 | 136.6/km² |
| Järvenpää/Träskända | 37 km² | 37,114 | 1003.1/km² |
| Kerava/Kervo | 31 km² | 31,170 | 1,005.5/km² |
| Kirkkonummi/Kyrkslätt | 365 km² | 31,695 | 86.8/km² |
| Nurmijärvi | 362 km² | 36,068 | 99.6/km² |
| Sipoo/Sibbo | 364 km² | 18,397 | 50.6/km² |
| Tuusula/Tusby | 220 km² | 33,952 | 154.3/km² |
| Capital Region, Total | 2,124 km² | 1,164,318 | 548.2/km² |
| Hyvinkää/Hyvinge | 323.2 km² | 43,169 | 133.6/km² |
| Vihti | 522.0 km² | 24,954 | 47.8/km² |
| Greater Helsinki, Total | 2,970.6 km² | 1,232,741 | 415.0/km² |