Postcodes in Isle of Anglesey page 2 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
LL58 8ND Seiriol 53.294941 -4.095422 260438 379602 SH604796
LL58 8NE Seiriol 53.292721 -4.088186 260913 379341 SH609793
LL58 8NF Seiriol 53.293633 -4.087991 260929 379442 SH609794
LL58 8NG Seiriol 53.294027 -4.088055 260926 379486 SH609794
LL58 8NH Seiriol 53.294198 -4.089054 260860 379507 SH608795
LL58 8NL Seiriol 53.29462 -4.087574 260960 379551 SH609795
LL58 8NN Seiriol 53.295311 -4.087142 260991 379627 SH609796
LL58 8NP Seiriol 53.294674 -4.087036 260996 379556 SH609795
LL58 8NR Seiriol 53.295381 -4.089277 260849 379639 SH608796
LL58 8NS Seiriol 53.295145 -4.084808 261146 379604 SH611796
LL58 8NT Seiriol 53.296758 -4.086102 261065 379786 SH610797
LL58 8NU Seiriol 53.296086 -4.085484 261104 379710 SH611797
LL58 8NW Seiriol 53.292775 -4.087169 260981 379345 SH609793
LL58 8NY Seiriol 53.297794 -4.088584 260903 379906 SH609799
LL58 8PA Seiriol 53.299199 -4.096621 260372 380078 SH603800
LL58 8PB Seiriol 53.304216 -4.094046 260560 380631 SH605806
LL58 8PD Seiriol 53.304732 -4.096397 260405 380693 SH604806
LL58 8PE Seiriol 53.306248 -4.097132 260361 380863 SH603808
LL58 8PF Seiriol 53.306669 -4.095126 260496 380906 SH604809
LL58 8PG Seiriol 53.306716 -4.094003 260571 380909 SH605809
LL58 8PH Seiriol 53.309526 -4.099379 260222 381232 SH602812
LL58 8PL Seiriol 53.304751 -4.0994 260205 380701 SH602807
LL58 8PN Seiriol 53.299484 -4.103404 259921 380123 SH599801
LL58 8PP Seiriol 53.293296 -4.102034 259992 379432 SH599794
LL58 8PR Seiriol 53.289814 -4.109335 259494 379059 SH594790
LL58 8PS Seiriol 53.28427 -4.101006 260031 378426 SH600784
LL58 8PT Seiriol 53.282107 -4.093114 260550 378170 SH605781
LL58 8PW Seiriol 53.302075 -4.109955 259493 380424 SH594804
LL58 8RA Seiriol 53.264839 -4.087292 260882 376238 SH608762
LL58 8RB Seiriol 53.278865 -4.084181 261135 377792 SH611777
LL58 8RD Seiriol 53.279562 -4.079264 261465 377860 SH614778
LL58 8RE Seiriol 53.280588 -4.085375 261061 377986 SH610779
LL58 8RF Seiriol 53.282487 -4.085287 261073 378197 SH610781
LL58 8RG Seiriol 53.283501 -4.086387 261003 378312 SH610783
LL58 8RH Seiriol 53.28518 -4.088104 260894 378502 SH608785
LL58 8RL Seiriol 53.287425 -4.086683 260996 378749 SH609787
LL58 8RN Seiriol 53.293354 -4.069956 262130 379376 SH621793
LL58 8RP Seiriol 53.310196 -4.04213 264038 381196 SH640811
LL58 8RR Seiriol 53.311195 -4.050974 263452 381324 SH634813
LL58 8RS Seiriol 53.296885 -4.069016 262204 379767 SH622797
LL58 8RT Seiriol 53.2989 -4.070014 262144 379993 SH621799
LL58 8RU Seiriol 53.297713 -4.071037 262072 379863 SH620798
LL58 8RW Seiriol 53.295368 -4.063691 262554 379588 SH625795
LL58 8RY Seiriol 53.295946 -4.080631 261427 379685 SH614796
LL58 8SA Seiriol 53.303864 -4.083327 261273 380571 SH612805
LL58 8SB Seiriol 53.297951 -4.079062 261538 379905 SH615799
LL58 8SD Seiriol 53.301391 -4.076168 261742 380282 SH617802
LL58 8SE Seiriol 53.303244 -4.080235 261477 380496 SH614804
LL58 8SF Seiriol 53.298604 -4.074637 261835 379969 SH618799
LL58 8SG Seiriol 53.29866 -4.072974 261946 379972 SH619799
LL58 8SH Seiriol 53.300098 -4.069337 262193 380125 SH621801
LL58 8SL Seiriol 53.300275 -4.06798 262284 380142 SH622801
LL58 8SN Seiriol 53.301148 -4.066881 262360 380237 SH623802
LL58 8SP Seiriol 53.306832 -4.067276 262352 380870 SH623808
LL58 8SR Seiriol 53.30579 -4.070333 262145 380760 SH621807
LL58 8SS Seiriol 53.306845 -4.074781 261852 380886 SH618808
LL58 8ST Seiriol 53.307224 -4.079873 261514 380938 SH615809
LL58 8SU Seiriol 53.306582 -4.083204 261290 380873 SH612808
LL58 8SW Seiriol 53.305071 -4.069277 262213 380678 SH622806
LL58 8SY Seiriol 53.306519 -4.089881 260845 380879 SH608808
LL58 8TA Seiriol 53.308625 -4.090224 260829 381114 SH608811
LL58 8TB Seiriol 53.310515 -4.093739 260601 381331 SH606813
LL58 8TH Seiriol 53.277017 -4.121185 258662 377659 SH586776
LL58 8TL Seiriol 53.278507 -4.115754 259029 377814 SH590778
LL58 8TN Seiriol 53.283718 -4.131088 258024 378424 SH580784
LL58 8TP Seiriol 53.288774 -4.140897 257387 379006 SH573790
LL58 8TR Seiriol 53.294207 -4.160721 256084 379650 SH560796
LL58 8TS Seiriol 53.290818 -4.137233 257638 379226 SH576792
LL58 8TT Seiriol 53.289548 -4.139375 257491 379089 SH574790
LL58 8TU Seiriol 53.291663 -4.139226 257508 379324 SH575793
LL58 8TW Seiriol 53.288361 -4.139406 257485 378957 SH574789
LL58 8TX Seiriol 53.291433 -4.138059 257585 379296 SH575792
LL58 8TY Seiriol 53.290385 -4.139312 257498 379182 SH574791
LL58 8UA Seiriol 53.294407 -4.137637 257623 379626 SH576796
LL58 8UB Seiriol 53.295031 -4.142951 257271 379706 SH572797
LL58 8UD Seiriol 53.295197 -4.139192 257522 379717 SH575797
LL58 8UE Seiriol 53.29419 -4.139232 257516 379605 SH575796
LL58 8UF Seiriol 53.295119 -4.138048 257598 379706 SH575797
LL58 8UG Seiriol 53.294791 -4.136261 257716 379666 SH577796
LL58 8UH Seiriol 53.294495 -4.134716 257818 379630 SH578796
LL58 8UL Seiriol 53.297456 -4.139605 257502 379969 SH575799
LL58 8UN Seiriol 53.300301 -4.148362 256928 380303 SH569803
LL58 8UP Seiriol 53.302018 -4.14237 257333 380482 SH573804
LL58 8UR Seiriol 53.303544 -4.139475 257531 380646 SH575806
LL58 8UT Seiriol 53.305325 -4.140449 257472 380846 SH574808
LL58 8UU Seiriol 53.304591 -4.136285 257747 380756 SH577807
LL58 8UW Seiriol 53.30415 -4.144803 257178 380724 SH571807
LL58 8UY Seiriol 53.30842 -4.137827 257657 381185 SH576811
LL58 8WY Seiriol 53.309429 -4.140234 257500 381302 SH574813
LL58 8XB Seiriol 53.3098 -4.140103 257510 381343 SH575813
LL58 8YA Seiriol 53.308813 -4.134439 257884 381222 SH578812
LL58 8YB Seiriol 53.31114 -4.118403 258960 381449 SH589814
LL58 8YD Seiriol 53.308233 -4.117073 259039 381123 SH590811
LL58 8YE Seiriol 53.304464 -4.129795 258179 380729 SH581807
LL58 8YF Seiriol 53.297828 -4.121766 258692 379975 SH586799
LL58 8YG Seiriol 53.294056 -4.12407 258526 379560 SH585795
LL58 8YH Seiriol 53.255473 -4.103537 259768 375228 SH597752
LL58 8YL Seiriol 53.255389 -4.103203 259790 375218 SH597752
LL58 8YN Seiriol 53.261034 -4.101231 259940 375842 SH599758
LL58 8YP Seiriol 53.266638 -4.116802 258920 376496 SH589764
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




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