Dunster Authority, which is known as a 'single-purpose' authority, whose purpose is to "conserve and enhance the natural beauty, wildlife and cultural heritage of the National Parks" and "promote opportunities for the understanding and enjoyment of the special qualities of the Parks by the public", including responsibility for the conservation of the historic environment. Dunster is the most populous area of the electoral ward named 'Dunster and Timbercombe'. The ward extends North East to the Bristol Channel and South West to Timberscombe. The total population at the 2011 Census was 1,219. It is also part of the Bridgwater and West Somerset
Feudal barony of Dunster (born 1932). Julian Fownes Luttrell (born 1932), younger brother, living in 2015, who rents from the Crown Estate the Home Farm of Dunster Castle with 330 acres situated below the Castle Tor, and lives nearby at Thorncombe, at the foot of the Quantocks. He did not fully agree with his elder brother's decision to donate the estate to the National Trust, "but didn't question the right that the castle belonged to him". In 1956 he was a joint founder, with his former army comrade Sir Neville Bowman-Shaw (a Deputy Lieutenant for Bedfordshire, knighted by Prime Minister Margaret Thatcher for exports),