Hailuoto ( Swedish : Karlo ) is an island and a municipality in Northern Ostrobothnia Region , Finland . The population of Hailuoto is 981 (August 31, 2017)  and the municipality covers an area of 200.53 km 2 (excluding sea areas) of which 1.70 km 2 (0.66 sq mi) is inland water (January 1, 2016).  The population density is 4.89 / km 2 (12.7 / sq mi).
Hailuoto is located on an island of the same name opposite Oulu in the Gulf of Bothnia . A ferry operates regularly between Hailuoto and Oulunsalo . In winter an official ice roadconnects the island to the mainland.
Land in the region is constantly rising due to post-glacial rebound . It is estimated that the first part of Hailuoto appeared from the Baltic Sea about 1700 years ago. The current island of Hailuoto was formed from many smaller islands. Two large sections, Santonen and Hanhinen merged into the main island (Luoto) only about two centuries ago. The island is expanding and eventually will join the continent. Kirkkosalmi, a wetland region between Hanhinen and Luoto is renowned for being an important bird refuge where rare bird species are observed.
- ^ Jump up to:a b “Population density by area 01.01.2016” . Statistics Finland . Retrieved 12 February 2017 .
- ^ Jump up to:a b “Ennakkoväkiluku sukupuolen mukaan alueittain, Elokuu 2017” (in Finnish). Statistics Finland . Retrieved 18 October 2017 .
- Jump up^ “Population according to language and the number of foreigners and land area km2 by area as of 31 December 2008” . Statistics Finland’s PX-Web databases . Statistics Finland . Retrieved 29 March 2009 .
- Jump up^ “Population by age and gender by area as of 31 December 2008” . Statistics Finland’s PX-Web databases . Statistics Finland . Retrieved 28 April 2009 .
- Jump up^ “List of municipal and parish tax rates in 2011” . Tax Administration of Finland. 29 November 2010 . Retrieved 13 March 2011 .