GB United Kingdom Major Regions Postal Code Details
🏛️ Renfrewshire · Scotland
PA3 2BF
Abbotsinch
PA7 5DL
Bishopton
PA11 3PX
Bridge Of Weir
PA5 8WP
Brookfield
PA2 6AN
Castlehead
PA6 7BN
Crosslee
PA5 9DA
Elderslie
PA8 7LD
Erskine
PA7 5PT
Erskine Hospital
PA6 7BL
Georgetown
PA3 2SG
Glasgow Airport
G52 4LW
Hillington Park
PA6 7DR
Houston
PA9 1BT
Howwood
PA4 9PX
Inchinnan
PA5 8RF
Johnstone
PA10 2ET
Kilbarchan
PA14 6YX
Langbank
PA3 3QD
Linwood
PA3 3BD
Linwood Industrial Estate
PA12 4AQ
Lochwinnoch
PA1 2TG
Millarston
PA12 4JL
Newton Of Belltrees
PA1 3RE
Paisley
PA4 8RA
Renfrew
📮GB United Kingdom Regional Postal Code FAQ & Postal Regulations
📮 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).