If you seek information, both general and detailed, about postcodes in Wales - you have come to the right place. At postcode-checker.co.uk, we have the complete database of postcodes from the whole United Kingdom. If you know the street address, you can enter it and find the corresponding postcode. If you know the area, use the postcode map provided - drag it around until you locate the area and click on a selected spot to get the information you need. Postcode-checker.co.uk, as the name suggest, is a postcode checker tool. Unlike most similar websites though, we made sure the information you seek is presented clearly and without any hassle you might experience somewhere else.