Official minority languages of Sweden
Finnish has been spoken in Sweden ever since the (then provincial) borders were drawn in the 13th century. Sweden has always had a significant migration to and from Finland. As the two languages belong to different language families it is easy to distinguish them, unlike the neighbouring languages Norwegian and Danish. The number of Finnish speakers in Sweden today has been estimated to over 460,000. Even though many current Swedes are of full or mixed Finnish descent, Swedish is the main language in practice for many bilinguals.
Finland Swedish
An often repeated "fact" is that the municipality with the highest proportion of Swedish speakers in the world, Larsmo (93% ), is located in Finland. Korsnäs has also held this title and is often cited as such. However, as there are no official statistics on the mother tongue of inhabitants of Sweden, this is hard or impossible to verify. In addition bilingualism is very common for immigrants in Sweden, so the term "Swedish-speaking" may be diffuse in that sense.