See: List of castles, Castles in England, Castles in Scotland, Castles in Northern Ireland
Anglesey
Clwyd
Dyfed
Glamorgan
Gwent
Gwynedd
Powys
South Glamorgan
West Glamorgan
... there are 4,950 people, 1,924 households, and 1,252 families residing in the town. The population density is 225.9/km² (584.8/mi²). There are 3,878 housing units ...