Castletown, a seaport village in Portland Isle, Dorsetshire, 4 ½ miles S by E of Weymouth. It has a head post office, a hotel, and a stone wharf and pier.
The following is a list of the administrative units in which this place was either wholly or partly included.
Any dates in this table should be used as a guide only.
Online maps of Castletown are available from a number of sites: