Postcodes in Gwynedd page 52 Unitary Authority

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 52,448 households with a population of about 121,810

Parishes in this Unitary Authority
Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use

Postcode Ward Latitude Longitude Easting Northing Grid ref
LL55 9BR Peblig 53.140286 -4.248164 249718 362710 SH497627
LL55 9BS Peblig 53.140286 -4.248164 249718 362710 SH497627
LL55 9BT Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9BU Peblig 53.140277 -4.248179 249717 362709 SH497627
LL55 9BW Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9BX Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9BY Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9BZ Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DA Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DB Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DD Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DE Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DF Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DH Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DJ Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9DL Peblig 53.140294 -4.248185 249717 362711 SH497627
LL55 9ZX Canol Tref Caernarfon 53.140255 -4.277205 247776 362768 SH477627
LL55 9ZY Canol Tref Caernarfon 53.140376 -4.277475 247758 362782 SH477627
LL55 9ZZ Canol Tref Caernarfon 53.140376 -4.277475 247758 362782 SH477627
LL56 4AA Bethel a'r Felinheli 53.185765 -4.206139 252685 367681 SH526676
LL56 4AB Bethel a'r Felinheli 53.185748 -4.206133 252685 367679 SH526676
LL56 4HJ Bethel a'r Felinheli 53.183301 -4.210093 252412 367415 SH524674
LL56 4HQ Bethel a'r Felinheli 53.183983 -4.210143 252411 367491 SH524674
LL56 4HX Bethel a'r Felinheli 53.183544 -4.210515 252385 367443 SH523674
LL56 4HZ Bethel a'r Felinheli 53.184402 -4.210374 252397 367538 SH523675
LL56 4JA Bethel a'r Felinheli 53.185573 -4.208733 252511 367665 SH525676
LL56 4JB Bethel a'r Felinheli 53.186398 -4.207893 252570 367755 SH525677
LL56 4JD Bethel a'r Felinheli 53.185529 -4.208177 252548 367659 SH525676
LL56 4JE Bethel a'r Felinheli 53.185447 -4.207824 252571 367649 SH525676
LL56 4JF Bethel a'r Felinheli 53.18635 -4.208549 252526 367751 SH525677
LL56 4JG Bethel a'r Felinheli 53.187947 -4.203881 252843 367919 SH528679
LL56 4JH Bethel a'r Felinheli 53.186452 -4.207456 252599 367760 SH525677
LL56 4JJ Bethel a'r Felinheli 53.186661 -4.206359 252673 367781 SH526677
LL56 4JL Bethel a'r Felinheli 53.187122 -4.205685 252720 367831 SH527678
LL56 4JN Bethel a'r Felinheli 53.187163 -4.205432 252737 367835 SH527678
LL56 4JP Bethel a'r Felinheli 53.188803 -4.201804 252985 368010 SH529680
LL56 4JQ Bethel a'r Felinheli 53.186878 -4.204295 252812 367801 SH528678
LL56 4JR Bethel a'r Felinheli 53.189507 -4.195877 253383 368076 SH533680
LL56 4JS Bethel a'r Felinheli 53.19007 -4.198481 253211 368144 SH532681
LL56 4JT Bethel a'r Felinheli 53.190577 -4.197833 253256 368199 SH532681
LL56 4JU Y Faenol 53.189856 -4.208604 252534 368141 SH525681
LL56 4JW Bethel a'r Felinheli 53.187423 -4.204473 252802 367862 SH528678
LL56 4JX Y Faenol 53.191502 -4.198374 253223 368303 SH532683
LL56 4JY Bethel a'r Felinheli 53.190415 -4.196782 253326 368179 SH533681
LL56 4JZ Bethel a'r Felinheli 53.191289 -4.194786 253462 368272 SH534682
LL56 4LY Bethel a'r Felinheli 53.177146 -4.217124 251921 366745 SH519667
LL56 4NJ Bethel a'r Felinheli 53.177035 -4.220201 251715 366739 SH517667
LL56 4NQ Bethel a'r Felinheli 53.180316 -4.214429 252112 367092 SH521670
LL56 4NX Bethel a'r Felinheli 53.174986 -4.22254 251552 366516 SH515665
LL56 4NY Bethel a'r Felinheli 53.177524 -4.218087 251858 366789 SH518667
LL56 4NZ Bethel a'r Felinheli 53.176912 -4.218609 251821 366722 SH518667
LL56 4PA Bethel a'r Felinheli 53.186772 -4.209074 252492 367799 SH524677
LL56 4PB Bethel a'r Felinheli 53.185572 -4.209821 252438 367667 SH524676
LL56 4PD Bethel a'r Felinheli 53.184969 -4.210793 252371 367602 SH523676
LL56 4PE Bethel a'r Felinheli 53.184586 -4.20962 252448 367557 SH524675
LL56 4PF Bethel a'r Felinheli 53.175095 -4.217213 251908 366517 SH519665
LL56 4PJ Bethel a'r Felinheli 53.184285 -4.20941 252461 367523 SH524675
LL56 4PX Bethel a'r Felinheli 53.184089 -4.208816 252500 367500 SH525675
LL56 4PZ Bethel a'r Felinheli 53.184501 -4.208912 252495 367546 SH524675
LL56 4QA Y Faenol 53.192465 -4.190999 253719 368395 SH537683
LL56 4QB Y Faenol 53.192049 -4.189166 253840 368345 SH538683
LL56 4QD Y Faenol 53.192891 -4.172158 254979 368404 SH549684
LL56 4QE Y Faenol 53.189504 -4.166583 255340 368016 SH553680
LL56 4QF Penisa'r-waun 53.188667 -4.176016 254707 367942 SH547679
LL56 4QG Bethel a'r Felinheli 53.186582 -4.193572 253527 367746 SH535677
LL56 4QH Bethel a'r Felinheli 53.186977 -4.198487 253200 367800 SH532677
LL56 4QJ Bethel a'r Felinheli 53.186168 -4.201849 252973 367717 SH529677
LL56 4QL Bethel a'r Felinheli 53.185507 -4.197783 253242 367635 SH532676
LL56 4QN Bethel a'r Felinheli 53.181892 -4.196835 253293 367231 SH532672
LL56 4QP Bethel a'r Felinheli 53.182123 -4.206176 252670 367276 SH526672
LL56 4QQ Bethel a'r Felinheli 53.187345 -4.197533 253265 367839 SH532678
LL56 4QR Bethel a'r Felinheli 53.185913 -4.207413 252600 367700 SH526677
LL56 4QS Bethel a'r Felinheli 53.18702 -4.200061 253095 367808 SH530678
LL56 4QT Y Faenol 53.189575 -4.209218 252492 368111 SH524681
LL56 4QU Bethel a'r Felinheli 53.185571 -4.17077 255047 367587 SH550675
LL56 4QW Bethel a'r Felinheli 53.176868 -4.205961 252666 366691 SH526666
LL56 4QX Bethel a'r Felinheli 53.188384 -4.208962 252505 367978 SH525679
LL56 4QY Bethel a'r Felinheli 53.188928 -4.206281 252686 368033 SH526680
LL56 4QZ Bethel a'r Felinheli 53.189548 -4.206777 252655 368103 SH526681
LL56 4RJ Bethel a'r Felinheli 53.180357 -4.216108 252000 367100 SH519671
LL56 4RQ Bethel a'r Felinheli 53.182816 -4.211495 252317 367364 SH523673
LL56 4RX Bethel a'r Felinheli 53.180231 -4.217049 251937 367088 SH519670
LL56 4RZ Bethel a'r Felinheli 53.180212 -4.214708 252093 367081 SH520670
LL56 4SJ Bethel a'r Felinheli 53.178613 -4.216078 251996 366906 SH519669
LL56 4SQ Bethel a'r Felinheli 53.177552 -4.218522 251829 366793 SH518667
LL56 4SX Bethel a'r Felinheli 53.179954 -4.214066 252135 367051 SH521670
LL56 4SZ Bethel a'r Felinheli 53.178358 -4.21581 252013 366877 SH520668
LL56 4TJ Bethel a'r Felinheli 53.17741 -4.215946 252001 366772 SH520667
LL56 4TQ Bethel a'r Felinheli 53.1781 -4.215632 252024 366848 SH520668
LL56 4TX Bethel a'r Felinheli 53.177662 -4.214038 252129 366796 SH521667
LL56 4TZ Bethel a'r Felinheli 53.176526 -4.215177 252049 366672 SH520666
LL56 4UJ Bethel a'r Felinheli 53.180967 -4.212308 252256 367160 SH522671
LL56 4UQ Bethel a'r Felinheli 53.175167 -4.213311 252169 366517 SH521665
LL56 4UX Bethel a'r Felinheli 53.181238 -4.211768 252293 367189 SH522671
LL56 4UZ Bethel a'r Felinheli 53.181474 -4.211127 252337 367214 SH523672
LL56 4WA Canol Bangor 53.221712 -4.138039 257354 371541 SH573715
LL56 4WB Canol Bangor 53.221603 -4.138078 257351 371529 SH573715
LL56 4WD Canol Bangor 53.221712 -4.138039 257354 371541 SH573715
LL56 4WE Canol Bangor 53.221712 -4.138039 257354 371541 SH573715
LL56 4WF Canol Bangor 53.221712 -4.138039 257354 371541 SH573715
Contains OS data © Crown copyright and database right 2025
Contains Royal Mail data © Royal Mail copyright and database right 2025
Contains National Statistics data © Crown copyright and database rights 2025
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license