Postcodes in Isle of Anglesey page 4 Unitary Authority

  1. All administrative areas

This page provides postcode data for the Isle of Anglesey UK Unitary Authority.

In 2021, Isle of Anglesey contained approximately 30,800 households with a population of about 68,900

In 2011, Isle of Anglesey contained approximately 30,594 households with a population of about 69,751

Website: https://www.anglesey.gov.wales/

Wards in this Unitary Authority
Aethwy ,   Bodowyr ,   Bro Aberffraw ,   Bro'r Llynnoedd ,   Canolbarth Môn ,   Cefni ,   Crigyll ,   Lligwy ,   Parc a'r Mynydd ,   Seiriol ,   Talybolion ,   Tref Cybi ,   Twrcelyn ,   Ynys Gybi
Parishes in this Unitary Authority
Aberffraw ,   Amlwch ,   Beaumaris ,   Bodedern ,   Bodffordd ,   Bodorgan ,   Bryngwran ,   Cwm Cadnant ,   Cylch-y-Garn ,   Holyhead ,   Llanbadrig ,   Llanddaniel Fab ,   Llanddona ,   Llanddyfnan ,   Llaneilian ,   Llaneugrad ,   Llanfachraeth ,   Llanfaelog ,   Llanfaethlu ,   Llanfair Pwllgwyngyll ,   Llanfair-Mathafarn-Eithaf ,   Llanfair-yn-Neubwll ,   Llanfihangel Ysgeifiog ,   Llangefni ,   Llangoed ,   Llangristiolus ,   Llanidan ,   Llannerch-y-medd ,   Mechell ,   Menai Bridge ,   Moelfre ,   Penmynydd ,   Pentraeth ,   Rhoscolyn ,   Rhosybol ,   Rhosyr ,   Trearddur ,   Tref Alaw ,   Trewalchmai ,   Valley
Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use

Postcode Ward Latitude Longitude Easting Northing Grid ref
LL59 5LD Aethwy 53.229369 -4.170475 255215 372458 SH552724
LL59 5LE Aethwy 53.230115 -4.172445 255086 372545 SH550725
LL59 5LF Aethwy 53.229986 -4.173607 255008 372533 SH550725
LL59 5LG Aethwy 53.229701 -4.17641 254820 372507 SH548725
LL59 5LH Aethwy 53.229566 -4.17492 254919 372489 SH549724
LL59 5LJ Aethwy 53.227752 -4.171891 255115 372281 SH551722
LL59 5LL Aethwy 53.230245 -4.174175 254971 372563 SH549725
LL59 5LN Aethwy 53.230921 -4.172636 255076 372635 SH550726
LL59 5LP Aethwy 53.232315 -4.174055 254986 372793 SH549727
LL59 5LR Aethwy 53.231123 -4.175853 254862 372664 SH548726
LL59 5LS Aethwy 53.230546 -4.175449 254887 372599 SH548725
LL59 5LT Aethwy 53.230088 -4.175905 254855 372549 SH548725
LL59 5LU Aethwy 53.229731 -4.175243 254898 372508 SH548725
LL59 5LW Aethwy 53.230653 -4.176982 254785 372614 SH547726
LL59 5LY Aethwy 53.231074 -4.179027 254650 372665 SH546726
LL59 5NA Aethwy 53.230248 -4.17894 254653 372573 SH546725
LL59 5NB Aethwy 53.231543 -4.176473 254822 372712 SH548727
LL59 5ND Aethwy 53.231601 -4.173794 255001 372713 SH550727
LL59 5NE Aethwy 53.23097 -4.169956 255255 372635 SH552726
LL59 5NF Aethwy 53.229355 -4.172736 255064 372461 SH550724
LL59 5NG Aethwy 53.228828 -4.161638 255803 372380 SH558723
LL59 5NH Aethwy 53.231931 -4.160071 255918 372722 SH559727
LL59 5NL Seiriol 53.233904 -4.158867 256005 372939 SH560729
LL59 5NN Seiriol 53.233279 -4.156153 256184 372864 SH561728
LL59 5NP Seiriol 53.235017 -4.154517 256299 373054 SH562730
LL59 5NR Seiriol 53.237069 -4.145943 256878 373265 SH568732
LL59 5NS Seiriol 53.238681 -4.142802 257093 373438 SH570734
LL59 5NT Seiriol 53.239263 -4.142397 257122 373502 SH571735
LL59 5NU Seiriol 53.240779 -4.142083 257148 373670 SH571736
LL59 5NW Aethwy 53.230434 -4.155366 256227 372546 SH562725
LL59 5NY Seiriol 53.23959 -4.142203 257136 373538 SH571735
LL59 5PA Seiriol 53.240228 -4.140257 257268 373605 SH572736
LL59 5PB Seiriol 53.240661 -4.138675 257375 373650 SH573736
LL59 5PD Seiriol 53.243008 -4.133096 257755 373900 SH577738
LL59 5PE Seiriol 53.245608 -4.12801 258103 374179 SH581741
LL59 5PF Seiriol 53.245067 -4.131085 257896 374125 SH578741
LL59 5PG Seiriol 53.248341 -4.130004 257979 374487 SH579744
LL59 5PH Seiriol 53.255217 -4.123569 258431 375239 SH584752
LL59 5PL Seiriol 53.254933 -4.126359 258244 375213 SH582752
LL59 5PN Seiriol 53.252125 -4.132081 257853 374912 SH578749
LL59 5PP Seiriol 53.251424 -4.144113 257048 374858 SH570748
LL59 5PR Seiriol 53.250669 -4.143596 257080 374773 SH570747
LL59 5PS Seiriol 53.251216 -4.143159 257111 374833 SH571748
LL59 5PT Seiriol 53.249415 -4.14034 257293 374627 SH572746
LL59 5PU Seiriol 53.250466 -4.144395 257026 374752 SH570747
LL59 5PW Seiriol 53.251712 -4.142599 257150 374887 SH571748
LL59 5PY Seiriol 53.248615 -4.148815 256725 374555 SH567745
LL59 5QH Aethwy 53.23149 -4.169998 255254 372693 SH552726
LL59 5QJ Aethwy 53.231816 -4.16937 255297 372728 SH552727
LL59 5QL Aethwy 53.231931 -4.167503 255422 372737 SH554727
LL59 5QN Aethwy 53.230918 -4.167332 255430 372624 SH554726
LL59 5QP Seiriol 53.239067 -4.143316 257060 373482 SH570734
LL59 5QU Seiriol 53.234871 -4.158586 256027 373046 SH560730
LL59 5QW Aethwy 53.225729 -4.164987 255569 372042 SH555720
LL59 5QX Seiriol 53.241898 -4.145855 256900 373802 SH568738
LL59 5QY Aethwy 53.230591 -4.179856 254593 372613 SH545726
LL59 5QZ Aethwy 53.230301 -4.170642 255207 372562 SH552725
LL59 5RA Seiriol 53.246647 -4.154742 256323 374348 SH563743
LL59 5RB Seiriol 53.244139 -4.156684 256185 374073 SH561740
LL59 5RD Seiriol 53.244449 -4.144994 256966 374084 SH569740
LL59 5RE Aethwy 53.225884 -4.171272 255150 372072 SH551720
LL59 5RG Aethwy 53.226034 -4.169946 255239 372086 SH552720
LL59 5RH Aethwy 53.226584 -4.171832 255115 372151 SH551721
LL59 5RL Seiriol 53.247637 -4.126656 258200 374402 SH581744
LL59 5RN Aethwy 53.228301 -4.175769 254858 372350 SH548723
LL59 5RP Aethwy 53.233266 -4.183064 254388 372917 SH543729
LL59 5RR Aethwy 53.244549 -4.184043 254361 374174 SH543741
LL59 5RS Aethwy 53.239203 -4.185329 254257 373582 SH542735
LL59 5RT Aethwy 53.238623 -4.194366 253652 373536 SH536735
LL59 5RU Aethwy 53.238736 -4.200456 253246 373561 SH532735
LL59 5RW Aethwy 53.23318 -4.177935 254730 372897 SH547728
LL59 5RX Aethwy 53.238867 -4.200643 253234 373576 SH532735
LL59 5RY Aethwy 53.245423 -4.19422 253685 374292 SH536742
LL59 5SA Aethwy 53.255102 -4.19542 253638 375371 SH536753
LL59 5SB Seiriol 53.248563 -4.15914 256036 374570 SH560745
LL59 5SD Seiriol 53.254489 -4.177368 254840 375266 SH548752
LL59 5SE Seiriol 53.259733 -4.174261 255065 375843 SH550758
LL59 5SF Seiriol 53.266591 -4.177308 254885 376612 SH548766
LL59 5SG Seiriol 53.26561 -4.161108 255962 376470 SH559764
LL59 5SH Seiriol 53.265901 -4.157419 256209 376495 SH562764
LL59 5SL Seiriol 53.266195 -4.157554 256201 376528 SH562765
LL59 5SN Seiriol 53.268839 -4.157012 256246 376821 SH562768
LL59 5SP Seiriol 53.274348 -4.176923 254937 377474 SH549774
LL59 5SR Seiriol 53.274187 -4.161106 255991 377424 SH559774
LL59 5SS Aethwy 53.228213 -4.177128 254767 372343 SH547723
LL59 5ST Seiriol 53.268685 -4.159074 256108 376808 SH561768
LL59 5SU Aethwy 53.226653 -4.170502 255204 372156 SH552721
LL59 5SW Seiriol 53.275217 -4.167232 255586 377551 SH555775
LL59 5SY Aethwy 53.22614 -4.172034 255100 372102 SH550721
LL59 5TA Seiriol 53.234742 -4.155777 256214 373026 SH562730
LL59 5TB Seiriol 53.234941 -4.157735 256084 373052 SH560730
LL59 5TD Seiriol 53.2355 -4.157119 256127 373113 SH561731
LL59 5TE Seiriol 53.237134 -4.156272 256189 373293 SH561732
LL59 5TF Seiriol 53.236654 -4.155948 256209 373239 SH562732
LL59 5TG Seiriol 53.237348 -4.154904 256281 373314 SH562733
LL59 5TH Seiriol 53.237033 -4.153389 256381 373276 SH563732
LL59 5TL Seiriol 53.240747 -4.149365 256662 373681 SH566736
LL59 5TN Seiriol 53.242363 -4.150015 256624 373862 SH566738
LL59 5TP Seiriol 53.240962 -4.146932 256825 373700 SH568736
LL59 5TR Seiriol 53.239269 -4.145064 256944 373508 SH569735
Contains OS data © Crown copyright and database right 2026
Contains Royal Mail data © Royal Mail copyright and database right 2026
Contains National Statistics data © Crown copyright and database rights 2026
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license




© 2026 Chris Bell [ Email ] [ Bluesky ] [ Strava ] [ Privacy ]