Postcodes in Gwynedd page 35 Unitary Authority

  1. All administrative areas

This page provides postcode data for the Gwynedd UK Unitary Authority.

In 2021, Gwynedd contained approximately 51,100 households with a population of about 117,400

In 2011, Gwynedd contained approximately 52,450 households with a population of about 121,818

Website: https://www.gwynedd.llyw.cymru/

Wards in this Unitary Authority
Aberdyfi ,   Abererch ,   Abermaw ,   Abersoch gyda Llanengan ,   Arllechwedd ,   Arthog a Llangelynnin ,   Bethel a'r Felinheli ,   Bowydd a'r Rhiw ,   Brithdir and Llanfachreth/Ganllwyd/Llanelltyd ,   Bro Dysynni ,   Cadnant ,   Canol Bangor ,   Canol Bethesda ,   Canol Tref Caernarfon ,   Clynnog ,   Corris a Mawddwy ,   Criccieth ,   Cwm-y-glo ,   De Dolgellau ,   De Pwllheli ,   Deiniolen ,   Dewi ,   Diffwys a Maenofferen ,   Dolbenmaen ,   Dwyrain Bangor ,   Dwyrain Porthmadog ,   Dyffryn Ardudwy ,   Efailnewydd a Buan ,   Gerlan ,   Glaslyn ,   Glyder ,   Gogledd Dolgellau ,   Gogledd Pwllheli ,   Gorllewin Porthmadog ,   Gorllewin Tywyn ,   Harlech a Llanbedr ,   Hendre ,   Llanbedrog gyda Mynytho ,   Llanberis ,   Llandderfel ,   Llanllyfni ,   Llanrug ,   Llanuwchllyn ,   Llanwnda ,   Llanystumdwy ,   Menai ,   Morfa Nefyn a Thudweiliog ,   Morfa Tywyn ,   Nefyn ,   Peblig ,   Pen draw Llŷn ,   Pen-y-groes ,   Penisa'r-waun ,   Penrhyndeudraeth ,   Rachub ,   Teigl ,   Trawsfynydd ,   Tre-garth a Mynydd Llandygái ,   Tryfan ,   Waunfawr ,   Y Bala ,   Y Bontnewydd ,   Y Faenol ,   Y Groeslon ,   Yr Eifl
Parishes in this Unitary Authority
Aber ,   Aberdaron ,   Aberdovey ,   Arthog ,   Bala ,   Bangor ,   Barmouth ,   Beddgelert ,   Bethesda ,   Betws Garmon ,   Bontnewydd ,   Botwnnog ,   Brithdir and Llanfachreth ,   Bryn-crug ,   Buan ,   Caernarfon ,   Clynnog ,   Corris ,   Criccieth ,   Dolbenmaen ,   Dolgellau ,   Dyffryn Ardudwy ,   Ffestiniog ,   Ganllwyd ,   Harlech ,   Llanbedr ,   Llanbedrog ,   Llanberis ,   Llanddeiniolen ,   Llandderfel ,   Llandwrog ,   Llandygai ,   Llanegryn ,   Llanelltyd ,   Llanengan ,   Llanfair ,   Llanfihangel-y-Pennant ,   Llanfrothen ,   Llangelynnin ,   Llangywer ,   Llanllechid ,   Llanllyfni ,   Llannor ,   Llanrug ,   Llanuwchllyn ,   Llanwnda ,   Llanycil ,   Llanystumdwy ,   Maentwrog ,   Mawddwy ,   Nefyn ,   Pennal ,   Penrhyndeudraeth ,   Pentir ,   Pistyll ,   Porthmadog ,   Pwllheli ,   Talsarnau ,   Trawsfynydd ,   Trefor a Llanaelhaearn ,   Tudweiliog ,   Tywyn ,   Waunfawr ,   Y Felinheli
Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use

Postcode Ward Latitude Longitude Easting Northing Grid ref
LL53 7YW Efailnewydd a Buan 52.884231 -4.488285 232670 334764 SH326347
LL53 8AA Pen draw Llŷn 52.823657 -4.616041 223830 328333 SH238283
LL53 8AB Pen draw Llŷn 52.824973 -4.619594 223596 328488 SH235284
LL53 8AD Pen draw Llŷn 52.829073 -4.618772 223668 328942 SH236289
LL53 8AE Pen draw Llŷn 52.819973 -4.633423 222645 327966 SH226279
LL53 8AF Pen draw Llŷn 52.817737 -4.630053 222862 327709 SH228277
LL53 8AG Pen draw Llŷn 52.814882 -4.63549 222484 327405 SH224274
LL53 8AH Pen draw Llŷn 52.815546 -4.644064 221909 327500 SH219275
LL53 8AJ Morfa Nefyn a Thudweiliog 52.895857 -4.620359 223833 336373 SH238363
LL53 8AL Pen draw Llŷn 52.814082 -4.65524 221150 327365 SH211273
LL53 8AN Pen draw Llŷn 52.811723 -4.655007 221156 327102 SH211271
LL53 8AP Pen draw Llŷn 52.803446 -4.687901 218905 326264 SH189262
LL53 8AQ Morfa Nefyn a Thudweiliog 52.905077 -4.619801 223908 337397 SH239373
LL53 8AR Pen draw Llŷn 52.816509 -4.672901 219970 327679 SH199276
LL53 8AS Pen draw Llŷn 52.813379 -4.666965 220358 327316 SH203273
LL53 8AT Pen draw Llŷn 52.821445 -4.65891 220933 328193 SH209281
LL53 8AU Pen draw Llŷn 52.822083 -4.635184 222534 328205 SH225282
LL53 8AW Pen draw Llŷn 52.808085 -4.678023 219590 326755 SH195267
LL53 8AX Morfa Nefyn a Thudweiliog 52.882908 -4.627724 223285 334951 SH232349
LL53 8AZ Morfa Nefyn a Thudweiliog 52.878488 -4.646154 222027 334505 SH220345
LL53 8BD Pen draw Llŷn 52.803987 -4.704093 217816 326365 SH178263
LL53 8BE Pen draw Llŷn 52.804841 -4.711179 217342 326478 SH173264
LL53 8BG Pen draw Llŷn 52.808266 -4.709641 217460 326855 SH174268
LL53 8BH Pen draw Llŷn 52.811425 -4.710698 217403 327209 SH174272
LL53 8BJ Pen draw Llŷn 52.877222 -4.616843 223993 334292 SH239342
LL53 8BL Pen draw Llŷn 52.813487 -4.702694 217950 327418 SH179274
LL53 8BN Pen draw Llŷn 52.818001 -4.706269 217729 327929 SH177279
LL53 8BP Pen draw Llŷn 52.806697 -4.714574 217121 326693 SH171266
LL53 8BQ Pen draw Llŷn 52.870204 -4.643837 222149 333578 SH221335
LL53 8BS Pen draw Llŷn 52.805154 -4.714374 217128 326521 SH171265
LL53 8BT Pen draw Llŷn 52.814441 -4.738328 215553 327615 SH155276
LL53 8BU Pen draw Llŷn 52.806638 -4.723815 216498 326710 SH164267
LL53 8BW Pen draw Llŷn 52.810148 -4.717 216972 327083 SH169270
LL53 8BY Pen draw Llŷn 52.799075 -4.746056 214967 325926 SH149259
LL53 8DA Pen draw Llŷn 52.792612 -4.73347 215788 325175 SH157251
LL53 8DB Pen draw Llŷn 52.794846 -4.740345 215334 325441 SH153254
LL53 8DD Pen draw Llŷn 52.806049 -4.742326 215248 326692 SH152266
LL53 8DE Pen draw Llŷn 52.762273 -4.789797 211860 321947 SH118219
LL53 8DJ Efailnewydd a Buan 52.922939 -4.445931 235667 338971 SH356389
LL53 8DL Pen draw Llŷn 52.853264 -4.555152 228050 331478 SH280314
LL53 8DN Pen draw Llŷn 52.855098 -4.55474 228084 331681 SH280316
LL53 8DP Pen draw Llŷn 52.848445 -4.578796 226439 330999 SH264309
LL53 8DQ Efailnewydd a Buan 52.921982 -4.450445 235359 338875 SH353388
LL53 8DR Pen draw Llŷn 52.850681 -4.594213 225409 331285 SH254312
LL53 8DS Pen draw Llŷn 52.855699 -4.607704 224521 331876 SH245318
LL53 8DT Pen draw Llŷn 52.860254 -4.615628 224007 332402 SH240324
LL53 8DU Pen draw Llŷn 52.860849 -4.61559 224011 332468 SH240324
LL53 8DW Pen draw Llŷn 52.851155 -4.568307 227156 331275 SH271312
LL53 8DX Efailnewydd a Buan 52.924833 -4.444744 235753 339179 SH357391
LL53 8DY Pen draw Llŷn 52.859023 -4.618451 223811 332272 SH238322
LL53 8DZ Efailnewydd a Buan 52.928089 -4.450834 235357 339555 SH353395
LL53 8EA Pen draw Llŷn 52.855193 -4.61926 223742 331848 SH237318
LL53 8EB Pen draw Llŷn 52.850546 -4.635007 222662 331370 SH226313
LL53 8ED Pen draw Llŷn 52.851846 -4.633556 222765 331511 SH227315
LL53 8EE Pen draw Llŷn 52.858845 -4.629374 223076 332279 SH230322
LL53 8EF Pen draw Llŷn 52.859495 -4.640571 222324 332379 SH223323
LL53 8EG Pen draw Llŷn 52.860094 -4.65325 221474 332477 SH214324
LL53 8EH Pen draw Llŷn 52.853238 -4.651406 221569 331710 SH215317
LL53 8EJ Efailnewydd a Buan 52.929264 -4.455305 235060 339696 SH350396
LL53 8EL Pen draw Llŷn 52.853504 -4.641098 222265 331714 SH222317
LL53 8EN Pen draw Llŷn 52.856166 -4.639878 222358 332007 SH223320
LL53 8EP Pen draw Llŷn 52.850612 -4.65744 221152 331433 SH211314
LL53 8EQ Efailnewydd a Buan 52.933002 -4.455011 235094 340111 SH350401
LL53 8ER Pen draw Llŷn 52.846774 -4.656567 221195 331004 SH211310
LL53 8ES Pen draw Llŷn 52.845272 -4.656594 221187 330837 SH211308
LL53 8ET Pen draw Llŷn 52.843375 -4.648132 221749 330605 SH217306
LL53 8EU Pen draw Llŷn 52.840302 -4.631045 222888 330221 SH228302
LL53 8EW Pen draw Llŷn 52.848141 -4.652937 221445 331147 SH214311
LL53 8EX Efailnewydd a Buan 52.929099 -4.456352 234990 339680 SH349396
LL53 8EY Pen draw Llŷn 52.842176 -4.621565 223534 330406 SH235304
LL53 8EZ Efailnewydd a Buan 52.931452 -4.462527 234583 339956 SH345399
LL53 8HA Pen draw Llŷn 52.840462 -4.609582 224333 330186 SH243301
LL53 8HD Pen draw Llŷn 52.849509 -4.6136 224100 331202 SH240312
LL53 8HF Pen draw Llŷn 52.861414 -4.618506 223817 332538 SH238325
LL53 8HG Pen draw Llŷn 52.86186 -4.621088 223646 332594 SH236325
LL53 8HH Pen draw Llŷn 52.84473 -4.661105 220882 330788 SH208307
LL53 8HL Pen draw Llŷn 52.845992 -4.671786 220168 330955 SH201309
LL53 8HN Pen draw Llŷn 52.837361 -4.673721 220002 330000 SH200299
LL53 8HP Pen draw Llŷn 52.831435 -4.675317 219870 329345 SH198293
LL53 8HR Pen draw Llŷn 52.822413 -4.671853 220066 328333 SH200283
LL53 8HS Pen draw Llŷn 52.830651 -4.661818 220775 329224 SH207292
LL53 8HT Pen draw Llŷn 52.842144 -4.655734 221233 330487 SH212304
LL53 8HU Pen draw Llŷn 52.830757 -4.648655 221663 329203 SH216292
LL53 8HW Pen draw Llŷn 52.829083 -4.681541 219441 329099 SH194290
LL53 8HY Pen draw Llŷn 52.825445 -4.652548 221378 328622 SH213286
LL53 8LA Pen draw Llŷn 52.829998 -4.683602 219306 329206 SH193292
LL53 8LB Pen draw Llŷn 52.830219 -4.687342 219055 329240 SH190292
LL53 8LD Pen draw Llŷn 52.838582 -4.686938 219117 330169 SH191301
LL53 8LE Pen draw Llŷn 52.843526 -4.69654 218491 330743 SH184307
LL53 8LF Pen draw Llŷn 52.838406 -4.693535 218672 330166 SH186301
LL53 8LG Pen draw Llŷn 52.838409 -4.703663 217989 330192 SH179301
LL53 8LH Pen draw Llŷn 52.826524 -4.725578 216464 328926 SH164289
LL53 8LJ Efailnewydd a Buan 52.908144 -4.449158 235393 337333 SH353373
LL53 8LL Pen draw Llŷn 52.819949 -4.721308 216723 328184 SH167281
LL53 8LN Pen draw Llŷn 52.821472 -4.709409 217532 328323 SH175283
LL53 8LP Pen draw Llŷn 52.846874 -4.708244 217716 331145 SH177311
LL53 8LR Pen draw Llŷn 52.848301 -4.686603 219179 331249 SH191312
LL53 8LW Pen draw Llŷn 52.832127 -4.701164 218132 329487 SH181294
LL53 8LX Efailnewydd a Buan 52.912202 -4.446427 235592 337778 SH355377
LL53 8LZ Efailnewydd a Buan 52.914352 -4.450296 235341 338026 SH353380
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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