Crowborough is the largest and highest inland town in East Sussex . It is a civil parish in the Wealden district of East Sussex, England. It is situated in the Weald, at the edge of Ashdown Forest, in the High Weald Area of Outstanding Natural Beauty. It is 7 miles (11 km) south-west of Royal Tunbridge Wells and 33 miles (53 km) south of London. It has road and rail links and is served by a town council. It has a population of over 21,000 people.