The population on the island was in 2020 totaling 39.599 persons. The number has been slowly declining for many years. According to a survey from 2004, 21,649 second homes and 4,087 summer cottages on Bornholm. There were 2004 1.382 vacant homes on the island.
Spring comes to Bornholm approx. 14 days later than the rest of the country. In return, the island has a long, beautiful autumn with temperatures, which makes swimming in the Baltic Sea possible well into September.