Røst is a small island municipality in Nordland county, Norway. It is part of the traditional district of Lofoten. The administrative centre of the municipality is the village of Røstlandet on the island of Røstlandet. The island municipality is very small and is essentially a large fishing village centered around Røstlandet. Many of the residents are involved in the fishing industry or support the industry. There are six fish farms in Røst. During the main fishing season, there can be up to 600 fishing boats based out of Røst. The municipality is the 353rd largest by area out of the 356 municipalities in Norway. Røst is the 351st most populous municipality in Norway with a population of 469. The municipality's population density is , and its population has decreased by 21.2% over the previous 10-year period. The municipality of Røst was established on 1 July 1928 when it was separated from Værøy Municipality. Initially, it had 731 residents. The municipal boundaries have not changed since that time. The municipality is named after the main island of Røstlandet (Old Norse: Rǫst). The name is identical with the word rǫst which means "maelstrom". (See Moskstraumen.) The coat of arms was granted on 28 November 1986. The official blazon is "Argent, three cormorants issuant from the base sable" (I sølv tre oppvoksende svarte skarver). This means the arms have a field (background) that has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used. The charge is three black European shags (Gulosus aristotelis), which is a species of cormorant. The design was chosen to symbolize a local legend of three brothers who could transform themselves into cormorants. This story was recounted by Asbjørnsen and Moe, the famous collectors of Norwegian folklore. The arms were designed by Arvid Sveen. the coats of arms of Loppa and Skjervøy The Church of Norway has one parish (sokn) within the municipality of Røst. It is part of the Bodø domprosti (arch-deanery) in the Diocese of Sør-Hålogaland.