GB United Kingdom Major Regions Postal Code Details
🏛️ Conwy · Wales
LL22 8QD
Abergele
LL32 8SJ
Baclaw
LL22 8AW
Betws Yn Rhos
LL24 0SU
Betws-Y-Coed
LL28 4YL
Bron Y Nant
LL31 9QD
Bryn Pydew
LL28 5ER
Bryn-Y-Maen
LL16 5SL
Bylchau
LL24 0EB
Capel Curig
LL26 0RW
Capel Garmon
LL34 6SP
Capelulo
LL26 0PD
Carmel
LL17 0HL
Cefn Meiriadog
LL21 9TL
Cerrigydrudion
LL29 9BA
Colwyn Bay
LL32 8PF
Conwy
LL31 9UW
Deganwy
LL32 8JN
Dolgarrog
LL22 8NF
Dolwen
LL28 5HR
Dolwyd
LL25 0JF
Dolwyddelan
LL34 6RY
Dwygyfylchi
LL28 5UE
Eglwysbach
LL28 5PT
Glan Conwy
LL28 5PS
Glan Conwy Corner
LL31 9JW
Glanwydden
LL21 0RY
Glasfryn
LL28 5TW
Graig
LL16 5SD
Groes
LL32 8SQ
Groesffordd
LL22 8UU
Gwytherin
LL32 8LE
Gyffin
LL32 8YY
Henryd
LL22 9DA
Kinmel
LL18 5BZ
Kinmel Bay
LL32 8UU
Llanbedr-Y-Cennin
LL26 0AZ
Llanddoged
LL22 8JW
Llanddulas
LL30 1TQ
Llandudno
LL26 0YF
Maenan
LL21 9NY
Maerdy
LL26 0SP
Melin-Y-Coed
LL28 5DL
Mochdre
LL22 9RE
Moelfre
LL22 9SL
Morfa
LL27 0JA
Nant Bwlch Yr Haiarn
LL26 0TL
Nant Y Rhiw
LL26 0TG
Nebo
LL32 8EX
Oakwood Park
LL29 9PH
Old Colwyn
LL24 0HL
Padog
LL22 8UF
Pandy Tudur
LL24 0UW
Penmachno
LL34 6UY
Penmaenmawr
LL30 3RA
Penrhyn Bay
LL30 3DA
Penrhynside
LL22 7SB
Pensarn
LL24 0BY
Pentre Du
LL24 0HU
Pentrefoelas
LL16 5SG
Rhiw
LL24 0DE
Rhiwddolion
LL28 4ST
Rhos On Sea
LL22 8EB
Rhyd-Y-Foel
LL24 0SS
Rhydlanfair
LL24 0TH
Rhydlydan
LL25 0JQ
Roman Bridge
LL32 8YA
Rowen
LL22 9RR
Saint George
LL31 9QE
Segurinside
LL32 8JF
Tal-Y-Bont
LL28 5RD
Tal-Y-Cafn
LL29 9AN
Tan-Y-Lan
LL22 9EW
Towyn
LL27 0JQ
Trefriw
LL31 9PN
Tremarl Industrial Estate
LL22 8BD
Trofarth
LL21 0RF
Ty Nant
LL32 8TQ
Tyn-Y-Groes
LL24 0NY
Ysbyty Ifan
📮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).