The civil parish is formed by the villages of Roos, Hilston and Tunstall, together with the hamlet of Owstwick.[4] According to the 2011 UK census, Roos parish had a population of 1,168,[1] an increase on the 2001 UK census figure of 1,113.[5] The parish covers an area of 2,333.222 hectares (5,765.52 acres).[6]
The Prime Meridian crosses the coast to the east of Roos.
^Gazetteer — A–Z of Towns Villages and Hamlets. East Riding of Yorkshire Council. 2006. p. 9.
^Garth, John (2003). Tolkien and the Great War: The Threshold of Middle-earth. HarperCollins. pp. 238–239. ISBN978-0-00711-953-0. The flowers, Anthriscus sylvestris, are what books might call cow parsley ... among many other names; but Tolkien referred to all such white-flowered umbellifers (and not just the highly poisonous Conium maculatum) by the usual rural name of hemlock. [In a footnote, Garth adds that Christopher Tolkien noted that his father objected to the habit of limiting vernacular names to "this or that species" as the "pedantry of popularizing botanists".]