Borlänge Municipality is a Swedish municipality in Dalarna County, in central Sweden, with an area of 586.4 km². The municipality has a population of 47,206; of these, around 40,000 live in the town Borlänge, which is the seat of the municipality. During all of the 20th century Borlänge has been a typical industrial city with a relatively good economic growth, but today the service industry is spreading. Borlänge promotes itself as The Number One Shopping City in Dalarna. This is possible due to the Kupolen area, situated about 1 kilometer west of the city centre. The Kupolen area includes Kupolen ('The Dome') Shopping Centre (Kupolen Köpcentrum in Swedish) and the surrounding region. Though the district was first built to catch the interest from bypassers it has withdrawn the focus from the nearby downtown area and has overtaken the role as the pulsating heart of Borlänge.