Korsholm

Korsholm
KorsholmMustasaari
Municipality
Korsholms kommun
Mustasaaren kunta
The Replot Bridge on a grey autumn day
Location of Korsholm in Finland
Coordinates: 63°06′45″N 021°40′40″E / 63.11250°N 21.67778°E / 63.11250; 21.67778
Country Finland
RegionOstrobothnia
Sub-regionVaasa
Charter1348
Government
  Municipal managerRurik Ahlberg
Area
 (2018-01-01)
  Total
3,178.59 km2 (1,227.26 sq mi)
  Land849.49 km2 (327.99 sq mi)
  Water2,330.49 km2 (899.81 sq mi)
  Rank91st largest in Finland
Population
 (2025-03-31)
  Total
19,750
  Rank55th largest in Finland
  Density23.25/km2 (60.2/sq mi)
Population by native language
  Swedish68% (official)
  Finnish28.5%
  Others3.5%
Population by age
  0 to 1419.7%
  15 to 6458%
  65 or older22.3%
Time zoneUTC+02:00 (EET)
  Summer (DST)UTC+03:00 (EEST)
Websiteen.korsholm.fi

Korsholm (Finland Swedish: [korsˈholm]; Finnish: Mustasaari) is a municipality in Finland, located on the west coast of the country. Korsholm is situated in Ostrobothnia, along the Gulf of Bothnia. The population of Korsholm is approximately 20,000, while the sub-region has a population of approximately 111,000. It is the 55th most populous municipality in Finland.

The town of Vaasa was founded in Korsholm parish in 1606 and today the municipality completely surrounds the city. It is a coastal, mostly rural municipality, consisting of a rural landscape and a large, fractured archipelago. The administrative center is Smedsby, situated 3 km (2 mi) from Vaasa center along Finnish national road 8.

Korsholm is a bilingual municipality with Finnish and Swedish as its official languages. The population consists of 28% Finnish speakers, 68% Swedish speakers, and 4% speakers of other languages.