Castletown, Isle of Man House of Keys moved from Castletown to Douglas. The Isle of Man Census 2011 lists the town's population as 3,097 (2006: 3,109) It is the fourth largest town on the island, after Douglas, Ramsey and Peel, but is also smaller than Onchan and Port Erin, which have the status of villages. The town lies on the northwest side of Castletown Bay. The opposite shore of the bay is the west coast of the distinctively-shaped Langness Peninsula. To the north-east are Ronaldsway Airport and industrial zone, and the village of Ballasalla; to the north-west the villages of Ballabeg and Colby; and
Port Erin carriages. Prior to this the rolling stock was stored in the open. Bus services operate directly through a depot in Bridson Street in the village to the island's capital Douglas via Port St Mary, Colby, Castletown and Ballasalla using route numbers 1, 2, 11 and 12; these run about every twenty minutes at weekdays and Saturdays, with a less frequent service at weekends and after 6.00pm. Some of these services (1c and 11b) use an alternative coastal route. The route is the island's busiest, partly because it calls at the island's airport. A late evening service also operates on Friday