Siuntio

Siuntio
Siuntio (Finnish)
Sjundeå (Swedish)
Municipality
Siuntion kunta
Sjundeå kommun
Motto: 
Ota rauhallisesti – Ta det lugnt
Location of Siuntio in Finland
Coordinates: 60°08′15″N 24°13′35″E / 60.13750°N 24.22639°E / 60.13750; 24.22639
Country Finland
RegionUusimaa
Sub-regionHelsinki sub-region
Year when first mentioned1382
SeatSiuntion asemanseutu
Government
  Municipality managerInka Tikkanen
Area
 (2018-01-01)
  Total
266.12 km2 (102.75 sq mi)
  Land241.27 km2 (93.15 sq mi)
  Water24.96 km2 (9.64 sq mi)
  Rank249th largest in Finland
Population
 (2025-03-31)
  Total
6,199
  Rank151st largest in Finland
  Density25.69/km2 (66.5/sq mi)
Population by native language
  Finnish65.2% (official)
  Swedish26.2% (official)
  Others8.6%
Population by age
  0 to 1417.3%
  15 to 6463%
  65 or older19.7%
Time zoneUTC+02:00 (EET)
  Summer (DST)UTC+03:00 (EEST)
ClimateDfb
Websitewww.siuntio.fi

Siuntio (Finnish: [ˈsiu̯ntio]; Swedish: Sjundeå) is a municipality in the Uusimaa region of Southern Finland. Its neighboring municipalities are Ingå to the west, Kirkkonummi to the east, Lohja to the north-west, and Vihti to the north. It is 46 kilometres (29 mi) west of Helsinki.

As of 2021, the population was 6,199 with a population density of 25.69 inhabitants per square kilometre (66.5/sq mi). The municipality covers an area of 266.12 square kilometres (102.75 sq mi), of which 24.96 km2 (9.64 sq mi) is water.

Siuntio is a bilingual municipality with Finnish and Swedish as its official languages. The population consists of 65% Finnish speakers, 26% Swedish speakers, and 9% speakers of other languages. Previously, the majority of the population spoke Swedish until the 1980s.

Siuntio's motto is "Ota rauhallisesti  Ta det lugnt", which means "take it easy" in Finnish and Swedish respectively. The municipality's rebranding program introduced the new motto along with a new logo in 2021.