The postal-codes of Castle Caereinion is SY21. The City of Castle Caereinion is in Powys. The country of Powys is Wales (WLS)
The castle caereinion postcode region (AB) contains 34 unique 'outward' codes. castle caereinion is the main postal town or district for this region, with all castle caereinion postcodes starting with the following outward codes.
This page contains a list of postcodes for castle caereinion area. Select a castle caereinion postcode to see the map location, demographics, house prices, local information, tourist guides and statistics:
There are a number of local information, guides and useful data to browse and explore, whether you're a castle caereinion resident or a visitor to the castle caereinion area.