GB United Kingdom Major Regions Postal Code Details
🏛️ Cardiff (caerdydd) · Wales
CF10 3EABlackweir
Blackweir cardiff (caerdydd) wales CF10 3EA United Kingdom
CF83 1NGBlaengwynlais
Blaengwynlais cardiff (caerdydd) wales CF83 1NG United Kingdom
CF11 8EGCanton
Canton cardiff (caerdydd) wales CF11 8EG United Kingdom
CF5 6JNCapel Llanilltern
Capel Llanilltern cardiff (caerdydd) wales CF5 6JN United Kingdom
CF10 4EQCardiff
Cardiff cardiff (caerdydd) wales CF10 4EQ United Kingdom
CF10 4EWDocks
Docks cardiff (caerdydd) wales CF10 4EW United Kingdom
CF5 4AAEly
Ely cardiff (caerdydd) wales CF5 4AA United Kingdom
CF5 3DPFairwater
Fairwater cardiff (caerdydd) wales CF5 3DP United Kingdom
CF14 3LEGabalfa
Gabalfa cardiff (caerdydd) wales CF14 3LE United Kingdom
CF11 6RYGrangetown
Grangetown cardiff (caerdydd) wales CF11 6RY United Kingdom
CF15 9HJGwaelod-Y-Garth
Gwaelod-Y-Garth cardiff (caerdydd) wales CF15 9HJ United Kingdom
CF14 4PPHeath
Heath cardiff (caerdydd) wales CF14 4PP United Kingdom
CF14 0XELisvane
Lisvane cardiff (caerdydd) wales CF14 0XE United Kingdom
CF5 2PBLlandaff
Llandaff cardiff (caerdydd) wales CF5 2PB United Kingdom
CF14 2AZLlandaff North
Llandaff North cardiff (caerdydd) wales CF14 2AZ United Kingdom
CF23 9EPLlanedeyrn
Llanedeyrn cardiff (caerdydd) wales CF23 9EP United Kingdom
CF14 5EELlanishen
Llanishen cardiff (caerdydd) wales CF14 5EE United Kingdom
CF3 5QWLlanrumney
Llanrumney cardiff (caerdydd) wales CF3 5QW United Kingdom
CF14 3APMaindy
Maindy cardiff (caerdydd) wales CF14 3AP United Kingdom
CF15 8LQMorganstown
Morganstown cardiff (caerdydd) wales CF15 8LQ United Kingdom
CF3 6XAOld Saint Mellons
Old Saint Mellons cardiff (caerdydd) wales CF3 6XA United Kingdom
CF14 7TQPantmawr
Pantmawr cardiff (caerdydd) wales CF14 7TQ United Kingdom
CF23 7XHPentwyn
Pentwyn cardiff (caerdydd) wales CF23 7XH United Kingdom
CF15 9QPPentyrch
Pentyrch cardiff (caerdydd) wales CF15 9QP United Kingdom
CF23 9EYPenylan
Penylan cardiff (caerdydd) wales CF23 9EY United Kingdom
CF23 8QBPontprennau
Pontprennau cardiff (caerdydd) wales CF23 8QB United Kingdom
CF15 8DPRadyr
Radyr cardiff (caerdydd) wales CF15 8DP United Kingdom
CF14 6LLRhiwbina
Rhiwbina cardiff (caerdydd) wales CF14 6LL United Kingdom
CF24 3ANRoath
Roath cardiff (caerdydd) wales CF24 3AN United Kingdom
CF3 4ATRumney
Rumney cardiff (caerdydd) wales CF3 4AT United Kingdom
CF5 6FSSaint Fagans
Saint Fagans cardiff (caerdydd) wales CF5 6FS United Kingdom
CF3 0EFSaint Mellons
Saint Mellons cardiff (caerdydd) wales CF3 0EF United Kingdom
CF24 2BFSplott
Splott cardiff (caerdydd) wales CF24 2BF United Kingdom
CF14 9DNThornhill
Thornhill cardiff (caerdydd) wales CF14 9DN United Kingdom
CF15 7NLTongwynlais
Tongwynlais cardiff (caerdydd) wales CF15 7NL United Kingdom
CF24 5SDTremorfa
Tremorfa cardiff (caerdydd) wales CF24 5SD United Kingdom
CF14 1PZWhitchurch
Whitchurch cardiff (caerdydd) wales CF14 1PZ United Kingdom
📋 United Kingdom Address and Delivery Guidance
📮
Use a Complete Delivery Address:
Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.
🌍
Follow Local Address Conventions:
Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.
✅
Verify Before Dispatch:
Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.
💡
Delivery Information Is Context-Specific:
Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.
Postal information, sources and verification
Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.
Editorial and service accountability
This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.
This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.
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📮United Kingdom Postal FAQ and delivery guidance
📮 What is the basic format of a UK postcode?
A UK postcode consists of 5-7 alphanumeric characters, split into two parts: the outward code (area and district) and inward code (specific street/building). Examples: SW1A 1AA (London) or M1 1AE (Manchester).
🔍 How to find or validate a UK postcode?
Use Royal Mail's free Postcode Finder tool on their official website to search by address, or third-party APIs for validation.
⚠️ What happens if I write a wrong postcode?
Incorrect postcodes may cause delays, returns, or lost mail. For important items, use Tracked services and double-check the recipient's postcode.
📬 Is a postcode mandatory for UK mail?
Yes! Postcodes are essential. Mail without a postcode or with errors faces significant delivery issues. Always write the postcode on a separate line at the end of the address (e.g., London SW1A 1AA).
