Houtskär (Houtskari in Finnish) is a municipality of Finland. The municipalities (kunta in Finnish, kommun in Swedish) represent the local level of self government in Finland and also act as the basic regional administrative units of the country. ...

It is located in the province of Western Finland and is part of the Finland Proper region. The municipality has a population of 662 and covers an area of 121.18 km² of which 0.65 km² is water. The population density is 5.5 inhabitants per km². Finland consists of 6 provinces (Finnish: läänit, Swedish: län), following a 1997 redesign that reduced their number from 12. ... The Province of Western Finland is a province of Finland. ... The Region of Finland Proper is a region (maakunta / landskap) of Finland. ... Finland is divided into 20 regions (maakunta/landskap in Finnish/Swedish). ...

The municipality is bilingual with majority being Swedish and minority Finnish speakers.