Billdal is a town (tätort) on the border between the municipalities (kommun) Kungsbacka and Gothenburg in the provinces of Halland County or Västra Götaland County. The town had 10,289 inhabitants in 2010, of which 6,745 on an area of ​​716 hectares of the municipality Kungsbacka and 3,544 inhabitants on 297 hectares of the municipality Gothenburg lived. This Billdal is one of the 13 places (including 8 tätorter) of Sweden, which lie on the territory of two provinces.