Postcodes in Gwynedd page 60 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 52,450 households with a population of about 121,818

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

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
LL57 3LE Arllechwedd 53.197995 -4.063546 262251 368757 SH622687
LL57 3LF Arllechwedd 53.198833 -4.066551 262053 368856 SH620688
LL57 3LG Arllechwedd 53.204289 -4.050507 263142 369432 SH631694
LL57 3LH Arllechwedd 53.20136 -4.064966 262167 369134 SH621691
LL57 3LJ Arllechwedd 53.165105 -4.04961 263077 365072 SH630650
LL57 3LL Arllechwedd 53.206501 -4.060376 262490 369697 SH624696
LL57 3LN Arllechwedd 53.213912 -4.057616 262698 370516 SH626705
LL57 3LP Gerlan 53.184169 -4.059814 262456 367212 SH624672
LL57 3LQ Gerlan 53.171713 -4.056389 262645 365820 SH626658
LL57 3LT Rachub 53.1863 -4.074824 261460 367478 SH614674
LL57 3LU Rachub 53.18448 -4.071443 261680 367269 SH616672
LL57 3LW Rachub 53.192168 -4.063596 262229 368109 SH622681
LL57 3LX Arllechwedd 53.155181 -4.042706 263507 363955 SH635639
LL57 3LY Rachub 53.181573 -4.067966 261903 366939 SH619669
LL57 3LZ Tre-garth a Mynydd Llandygái 53.123302 -4.020493 264892 360367 SH648603
LL57 3NA Rachub 53.181396 -4.067793 261914 366919 SH619669
LL57 3NB Canol Bethesda 53.181533 -4.066168 262023 366931 SH620669
LL57 3ND Rachub 53.181857 -4.068728 261853 366972 SH618669
LL57 3NE Rachub 53.180917 -4.067949 261902 366866 SH619668
LL57 3NF Canol Bethesda 53.181451 -4.063096 262228 366916 SH622669
LL57 3NG Canol Bethesda 53.181802 -4.063083 262230 366955 SH622669
LL57 3NH Canol Bethesda 53.1819 -4.063656 262192 366967 SH621669
LL57 3NJ Canol Bethesda 53.181126 -4.06317 262222 366880 SH622668
LL57 3NL Canol Bethesda 53.181976 -4.064977 262104 366978 SH621669
LL57 3NN Canol Bethesda 53.184149 -4.066159 262032 367222 SH620672
LL57 3NP Rachub 53.182014 -4.067448 261939 366987 SH619669
LL57 3NQ Rachub 53.182414 -4.06874 261854 367034 SH618670
LL57 3NR Rachub 53.181762 -4.067466 261937 366959 SH619669
LL57 3NS Canol Bethesda 53.178762 -4.058462 262529 366608 SH625666
LL57 3NT Canol Bethesda 53.178118 -4.058282 262539 366536 SH625665
LL57 3NU Canol Bethesda 53.178453 -4.058672 262514 366574 SH625665
LL57 3NW Canol Bethesda 53.182938 -4.06655 262002 367088 SH620670
LL57 3NX Rachub 53.180633 -4.067262 261947 366833 SH619668
LL57 3NY Canol Bethesda 53.178473 -4.056982 262627 366573 SH626665
LL57 3PA Canol Bethesda 53.178971 -4.054701 262781 366624 SH627666
LL57 3PB Canol Bethesda 53.179831 -4.055401 262737 366721 SH627667
LL57 3PD Canol Bethesda 53.179032 -4.055826 262706 366633 SH627666
LL57 3PE Canol Bethesda 53.177772 -4.055931 262695 366493 SH626664
LL57 3PF Canol Bethesda 53.177519 -4.057056 262619 366467 SH626664
LL57 3PG Canol Bethesda 53.176816 -4.055047 262751 366385 SH627663
LL57 3PH Canol Bethesda 53.176985 -4.054666 262777 366403 SH627664
LL57 3PJ Gerlan 53.179918 -4.054522 262796 366729 SH627667
LL57 3PL Canol Bethesda 53.17703 -4.053067 262884 366405 SH628664
LL57 3PN Canol Bethesda 53.176849 -4.052116 262947 366383 SH629663
LL57 3PP Canol Bethesda 53.176484 -4.056587 262647 366351 SH626663
LL57 3PR Canol Bethesda 53.17584 -4.056392 262658 366279 SH626662
LL57 3PS Gerlan 53.174134 -4.055742 262696 366088 SH626660
LL57 3PT Gerlan 53.173816 -4.056998 262611 366055 SH626660
LL57 3PU Gerlan 53.173444 -4.056113 262669 366012 SH626660
LL57 3PW Canol Bethesda 53.176557 -4.056007 262686 366358 SH626663
LL57 3PY Gerlan 53.173324 -4.054745 262760 365996 SH627659
LL57 3PZ Gerlan 53.174096 -4.054812 262758 366082 SH627660
LL57 3RA Gerlan 53.171925 -4.055052 262735 365841 SH627658
LL57 3RB Gerlan 53.173334 -4.055195 262730 365998 SH627659
LL57 3RD Gerlan 53.174273 -4.052397 262920 366097 SH629660
LL57 3RE Gerlan 53.173815 -4.053901 262818 366049 SH628660
LL57 3RF Gerlan 53.174368 -4.054137 262804 366111 SH628661
LL57 3RG Gerlan 53.175244 -4.052353 262926 366205 SH629662
LL57 3RH Gerlan 53.175321 -4.051549 262980 366212 SH629662
LL57 3RJ Gerlan 53.175669 -4.050683 263039 366249 SH630662
LL57 3RL Gerlan 53.175065 -4.05022 263068 366181 SH630661
LL57 3RN Gerlan 53.17702 -4.051031 263020 366400 SH630663
LL57 3RS Rachub 53.186502 -4.060061 262447 367472 SH624674
LL57 3RT Gerlan 53.18505 -4.058794 262527 367308 SH625673
LL57 3RU Gerlan 53.185 -4.059584 262474 367304 SH624673
LL57 3RW Canol Bethesda 53.178617 -4.053322 262872 366582 SH628665
LL57 3RX Gerlan 53.184793 -4.059604 262472 367281 SH624672
LL57 3RY Gerlan 53.184167 -4.058871 262519 367210 SH625672
LL57 3RZ Gerlan 53.183547 -4.058332 262553 367140 SH625671
LL57 3SA Gerlan 53.184044 -4.058192 262564 367195 SH625671
LL57 3SB Gerlan 53.183382 -4.056454 262678 367118 SH626671
LL57 3SD Rachub 53.193225 -4.060203 262459 368220 SH624682
LL57 3SE Gerlan 53.182881 -4.057852 262583 367065 SH625670
LL57 3SF Gerlan 53.183249 -4.057405 262614 367105 SH626671
LL57 3SG Gerlan 53.181612 -4.056369 262678 366921 SH626669
LL57 3SH Gerlan 53.181923 -4.056099 262697 366955 SH626669
LL57 3SJ Gerlan 53.181686 -4.055235 262754 366927 SH627669
LL57 3SL Gerlan 53.181946 -4.054724 262789 366955 SH627669
LL57 3SN Gerlan 53.180548 -4.05346 262869 366797 SH628667
LL57 3SP Gerlan 53.177951 -4.051809 262971 366505 SH629665
LL57 3SQ Gerlan 53.184768 -4.060007 262445 367279 SH624672
LL57 3SR Gerlan 53.178847 -4.051478 262996 366604 SH629666
LL57 3SS Gerlan 53.178163 -4.051475 262994 366528 SH629665
LL57 3ST Gerlan 53.178415 -4.050425 263065 366554 SH630665
LL57 3SU Gerlan 53.178449 -4.049513 263126 366556 SH631665
LL57 3SW Canol Bethesda 53.179341 -4.053552 262859 366663 SH628666
LL57 3SY Gerlan 53.178888 -4.050148 263085 366606 SH630666
LL57 3TA Gerlan 53.17947 -4.051298 263010 366673 SH630666
LL57 3TB Gerlan 53.180141 -4.052018 262964 366749 SH629667
LL57 3TD Gerlan 53.178439 -4.048525 263192 366553 SH631665
LL57 3TE Gerlan 53.178889 -4.048517 263194 366603 SH631666
LL57 3TF Gerlan 53.177908 -4.048021 263224 366493 SH632664
LL57 3TG Gerlan 53.177609 -4.04871 263177 366461 SH631664
LL57 3TH Gerlan 53.177816 -4.049229 263143 366485 SH631664
LL57 3TJ Gerlan 53.177981 -4.048518 263191 366502 SH631665
LL57 3TL Gerlan 53.177041 -4.04774 263240 366396 SH632663
LL57 3TN Gerlan 53.177113 -4.048282 263204 366405 SH632664
LL57 3TP Gerlan 53.176874 -4.049109 263148 366380 SH631663
LL57 3TR Gerlan 53.17676 -4.049433 263126 366368 SH631663
LL57 3TS Gerlan 53.176431 -4.047651 263244 366328 SH632663
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