You can help expand this article with text translated from the corresponding article in Finnish. (June 2023) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Finnish Wikipedia article at [[:fi:Östersundom]]; see its history for attribution. You may also add the template {{Translated|fi|Östersundom}} to the talk page. For more guidance, see Wikipedia:Translation.

Östersundom Östersundom
Helsinki Subdivision
Östersundom Church
Position of Östersundom within Helsinki
Country	Finland
Region	Uusimaa
Sub-region	Greater Helsinki
Municipality	Helsinki
Population	542
Subdivision number	55
Neighbouring subdivisions	Salmenkallio, Talosaari, Karhusaari, Ultuna, Vantaa, Sipoo

Östersundom (previously known in Finnish as Itäsalmi) is a subdistrict of Helsinki, Finland, near to the border of Sipoo. The area previously belonged to the municipality of Sipoo, but it was annexed to Helsinki on January 1, 2009 as part of the Southwest Sipoo Association ( Finnish: Lounais-Sipoon osakuntaliitos), ^[1] although the municipality of Sipoo opposed the idea. ^[2]

Östersundom Manor and its side manor Björkudden, where Zachris Topelius lived for the last years, are located in Östersundom. ^{[3] [4] [5]}

• East Helsinki
• Itämetro
• Sipoo

60°15′N 25°12′E / 60.250°N 25.200°E / 60.250; 25.200

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