GB United Kingdom Major Regions Postal Code Details
๐๏ธ Isle Of Anglesey (sir Ynys Mon) ยท Wales
LL63 5LJ
Aberffraw
LL68 9ND
Amlwch
LL68 9LL
Amlwch Port
LL58 8ED
Beaumaris
LL74 8RL
Benllech
LL62 5NN
Bethel
LL58 8RP
Black Point
LL65 3SX
Bodedern
LL77 7EJ
Bodffordd
LL62 5BN
Bodorgan
LL68 9HL
Brickpool
LL65 3PR
Bryngwran
LL61 6TX
Brynsiencyn
LL78 8JW
Brynteg
LL68 9ST
Bull Bay
LL68 9RP
Burwen
LL74 8RG
Bwlch
LL65 3DZ
Caergeiliog
LL77 7UR
Capel Coch
LL62 5NY
Capel Mawr
LL71 7DH
Carmel
LL68 0PH
Carreglefn
LL77 7UU
Cefniwrch
LL67 0DH
Cemaes Bay
LL67 0EA
Cemlyn
LL62 5PN
Cerrigceinwen
LL71 8EW
Coedana
LL63 5UU
Dothan
LL70 9HX
Dulas
LL61 6RL
Dwyran
LL65 2HX
Four Mile Bridge
LL60 6AG
Gaerwen
LL59 5NR
Glyngarth
LL65 3BN
Gorad
LL65 4PW
Gwalchmai
LL62 5LG
Hermon
LL65 2ND
Holyhead
LL65 2RH
Kingsland
LL72 8NE
Llanallgo
LL68 0TB
Llanbabo
LL76 8SZ
Llanbedrgoch
LL60 6EL
Llanddaniel
LL65 4AF
Llanddeusant
LL58 8UU
Llanddona
LL59 5YB
Llandegfan
LL71 7AL
Llandrygan
LL71 8AH
Llandyfrydog
LL68 9LW
Llaneilian
LL65 4DN
Llanfachraeth
LL63 5TD
Llanfaelog
LL58 8RF
Llanfaes
LL65 4NP
Llanfaethlu
LL65 3HY
Llanfair Yn Neubwll
LL61 5JS
Llanfairpwllgwyngyll
LL65 4LY
Llanfairynghornwy
LL68 0RG
Llanfechell
LL65 4DB
Llanfigael
LL77 7SN
Llanfinan
LL65 4YL
Llanfwrog
LL62 5HT
Llangadwaladr
LL60 6LU
Llangaffo
LL77 7PQ
Llangefni
LL71 8BE
Maenaddwyn
LL62 5AH
Malltraeth
LL73 8PA
Marianglas
LL59 5BF
Menai Bridge
LL72 8NL
Moelfre
LL65 1YW
Mountain
LL71 8BN
Mynydd Bodafon
LL68 0TE
Mynydd Mechell
LL68 9LF
Nebo
LL61 6RY
Newborough
LL62 5PD
Paradwys
LL63 5RY
Pencarnisiog
LL71 8AT
Pencraigwen
LL58 8SG
Penmon
LL61 6PN
Penmynydd
LL65 2JE
Penrhos
LL65 2LU
Penrhos Feilw
LL68 9TP
Penrhyd
LL75 8DJ
Pentraeth
LL60 6LG
Pentre Berw
LL61 5HJ
Pentre Uchaf
LL68 9PE
Pentrefelin
LL68 9DU
Penybonc
LL69 9YS
Penysarn
LL65 2LR
Porthdafarch
LL65 1BD
Porthyfelin
LL75 8EJ
Red Wharf Bay
LL75 8AX
Rhoscefnhir
LL65 2DX
Rhoscolyn
LL66 0BE
Rhosgoch
LL77 7RX
Rhosmeirch
LL64 5QX
Rhosneigr
LL77 7TY
Rhostrehwfa
LL68 9PP
Rhosybol
LL65 4EL
Rhydwyn
LL62 5BY
Soar
LL65 1YH
South Stack
LL60 6AP
Star
LL77 7TH
Talwrn
LL73 8PN
Traeth Bychan
LL65 2QF
Trearddur Bay
LL62 5HA
Trefdraeth
LL65 3YS
Trefor
LL77 7UW
Tregaian
LL67 0DT
Tregele
LL63 5SN
Ty Croes
LL65 3AX
Tyn Lon
LL74 8SA
Tyn-Y-Gongl
LL65 3BE
Valley
๐ฎGB United Kingdom Regional Postal Code FAQ & Postal Regulations
๐ฎ 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).
๐ 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.
โ ๏ธ 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.
๐ฌ 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).