Comprehensive Guide to Wales Postal Codes
Whether you are managing deliveries to the busy capital of Cardiff or sending mail to the scenic valleys of Snowdonia, having precise routing information is critical. Our 2026 directory offers a complete database to help you find the exact alphanumeric formats used across the Welsh nation. Select your specific county or district below to verify your address instantly.
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Wales
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List of All Regions Post Codes in Wales
Key Delivery Zones for Wales Postal Codes
The Royal Mail assigns specific starting letters to identify major sorting hubs across the country. Knowing these geographic prefixes helps streamline the dispatch process significantly. Here are the primary outward codes for Wales:
CF (Cardiff): Covers the capital city and the heavily populated surrounding valleys.
SA (Swansea): Routes mail to the south-west, including Carmarthenshire and Pembrokeshire.
LL (Llandudno): Covers a massive geographical area across North Wales.
NP (Newport): Manages deliveries for the south-east border regions.
Additional Resources for Wales Postal Codes
Need to look up addresses outside this region? Head back to our central UK Postal Hub . For a deeper understanding of the country’s unique bilingual culture and landscape, we recommend reading this detailed Wikipedia overview of Wales .