Ruissalo is an island in the Archipelago Sea and a district of the city of Turku, Finland. The island is located to the south-west of the city, between Hirvensalo and Pansio in the mainland. It is rather sparsely populated, having a population of only 126, with an annual growth rate of 3.97%. The villas on the island are considered culturally and historically valuable in Finland. Some are used as guesthouses; some are owned and run by foundations, labor unions, sports teams, and private enterprises in the area; some can be rented freely for days for private parties such as weddings; some have cafeterias in them. Private ownership exists – a couple villas even have renters with very selective occupancy. Some villas have deteriorated because of the high maintenance costs due to the historical building methods that must be used here.