Postcodes in Gwynedd page 59 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

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 3AF Canol Bethesda 53.18091 -4.064237 262150 366858 SH621668
LL57 3AG Canol Bethesda 53.180734 -4.063481 262200 366837 SH621668
LL57 3AH Canol Bethesda 53.181238 -4.062936 262238 366892 SH622668
LL57 3AJ Arllechwedd 53.193373 -4.071363 261714 368258 SH617682
LL57 3AL Canol Bethesda 53.180322 -4.063925 262169 366792 SH621667
LL57 3AN Canol Bethesda 53.180297 -4.062756 262247 366787 SH622667
LL57 3AP Canol Bethesda 53.17945 -4.061833 262306 366691 SH623666
LL57 3AQ Arllechwedd 53.19161 -4.076069 261394 368071 SH613680
LL57 3AR Canol Bethesda 53.179633 -4.061677 262317 366711 SH623667
LL57 3AS Canol Bethesda 53.180247 -4.061991 262298 366780 SH622667
LL57 3AT Canol Bethesda 53.180099 -4.061744 262314 366763 SH623667
LL57 3AU Canol Bethesda 53.17927 -4.061869 262303 366671 SH623666
LL57 3AW Canol Bethesda 53.180061 -4.063418 262202 366762 SH622667
LL57 3AX Arllechwedd 53.199188 -4.077633 261314 368917 SH613689
LL57 3AY Canol Bethesda 53.179305 -4.060359 262404 366672 SH624666
LL57 3AZ Arllechwedd 53.203536 -4.087097 260696 369419 SH606694
LL57 3BA Canol Bethesda 53.179949 -4.062635 262254 366748 SH622667
LL57 3BB Canol Bethesda 53.18 -4.061245 262347 366751 SH623667
LL57 3BD Canol Bethesda 53.18068 -4.059332 262477 366823 SH624668
LL57 3BE Canol Bethesda 53.180541 -4.058024 262564 366805 SH625668
LL57 3BF Canol Bethesda 53.178955 -4.058741 262511 366630 SH625666
LL57 3BG Canol Bethesda 53.18013 -4.057884 262572 366759 SH625667
LL57 3BH Gerlan 53.181747 -4.057393 262610 366938 SH626669
LL57 3BJ Canol Bethesda 53.175504 -4.057603 262576 366244 SH625662
LL57 3BL Canol Bethesda 53.180635 -4.056741 262650 366813 SH626668
LL57 3BN Gerlan 53.181587 -4.058343 262546 366922 SH625669
LL57 3BP Canol Bethesda 53.179203 -4.057391 262602 366655 SH626666
LL57 3BQ Tre-garth a Mynydd Llandygái 53.172888 -4.05866 262497 365955 SH624659
LL57 3BS Gerlan 53.182175 -4.059165 262493 366989 SH624669
LL57 3BT Gerlan 53.182077 -4.058636 262528 366977 SH625669
LL57 3BU Gerlan 53.182651 -4.058694 262526 367041 SH625670
LL57 3BW Gerlan 53.18177 -4.059235 262487 366944 SH624669
LL57 3BX Gerlan 53.174955 -4.055586 262709 366179 SH627661
LL57 3BY Gerlan 53.182404 -4.058936 262509 367014 SH625670
LL57 3BZ Gerlan 53.173517 -4.057642 262567 366023 SH625660
LL57 3DA Gerlan 53.182817 -4.058447 262543 367059 SH625670
LL57 3DB Gerlan 53.182261 -4.058346 262548 366997 SH625669
LL57 3DD Canol Bethesda 53.179445 -4.059498 262462 366686 SH624666
LL57 3DE Rachub 53.186003 -4.065515 262081 367427 SH620674
LL57 3DF Arllechwedd 53.191192 -4.067501 261965 368008 SH619680
LL57 3DG Arllechwedd 53.19961 -4.085394 260797 368979 SH607689
LL57 3DH Arllechwedd 53.198874 -4.08431 260867 368895 SH608688
LL57 3DL Arllechwedd 53.193742 -4.078073 261267 368312 SH612683
LL57 3DN Arllechwedd 53.189913 -4.079549 261156 367889 SH611678
LL57 3DP Rachub 53.186237 -4.068115 261908 367458 SH619674
LL57 3DQ Tre-garth a Mynydd Llandygái 53.143672 -4.041726 263536 362673 SH635626
LL57 3DR Rachub 53.185847 -4.067244 261965 367413 SH619674
LL57 3DS Rachub 53.185175 -4.066598 262006 367337 SH620673
LL57 3DT Rachub 53.187353 -4.062362 262296 367571 SH622675
LL57 3DU Rachub 53.189602 -4.061766 262343 367820 SH623678
LL57 3DW Rachub 53.188127 -4.078834 261198 367689 SH611676
LL57 3DY Rachub 53.190145 -4.060505 262429 367878 SH624678
LL57 3EA Rachub 53.189926 -4.062246 262312 367857 SH623678
LL57 3EB Rachub 53.190345 -4.06246 262299 367904 SH622679
LL57 3ED Rachub 53.190808 -4.062722 262283 367956 SH622679
LL57 3EE Rachub 53.191944 -4.063031 262266 368083 SH622680
LL57 3EF Rachub 53.191454 -4.064355 262176 368031 SH621680
LL57 3EG Rachub 53.190256 -4.066543 262026 367902 SH620679
LL57 3EH Rachub 53.188681 -4.065629 262082 367725 SH620677
LL57 3EJ Rachub 53.191233 -4.062593 262293 368003 SH622680
LL57 3EL Rachub 53.191355 -4.061236 262384 368014 SH623680
LL57 3EN Rachub 53.191526 -4.062277 262315 368035 SH623680
LL57 3EP Rachub 53.19129 -4.061862 262342 368008 SH623680
LL57 3ER Rachub 53.191281 -4.061353 262376 368006 SH623680
LL57 3ES Rachub 53.191609 -4.061084 262395 368042 SH623680
LL57 3ET Rachub 53.191254 -4.060827 262411 368002 SH624680
LL57 3EU Rachub 53.192335 -4.060729 262421 368122 SH624681
LL57 3EW Rachub 53.192228 -4.062221 262321 368113 SH623681
LL57 3EX Rachub 53.192777 -4.062173 262326 368174 SH623681
LL57 3EY Rachub 53.191517 -4.060196 262454 368030 SH624680
LL57 3EZ Arllechwedd 53.191819 -4.065061 262130 368073 SH621680
LL57 3GA Canol Bethesda 53.175604 -4.056545 262647 366253 SH626662
LL57 3GB Canol Bethesda 53.175897 -4.055197 262738 366283 SH627662
LL57 3HA Rachub 53.191177 -4.06009 262460 367992 SH624679
LL57 3HB Rachub 53.19153 -4.059957 262470 368031 SH624680
LL57 3HD Rachub 53.191218 -4.059808 262479 367996 SH624679
LL57 3HE Rachub 53.191012 -4.059259 262515 367972 SH625679
LL57 3HF Rachub 53.191782 -4.059416 262507 368058 SH625680
LL57 3HG Rachub 53.191226 -4.05882 262545 367995 SH625679
LL57 3HH Rachub 53.191626 -4.058031 262599 368038 SH625680
LL57 3HJ Rachub 53.192069 -4.059968 262471 368091 SH624680
LL57 3HL Rachub 53.191482 -4.058548 262564 368023 SH625680
LL57 3HN Rachub 53.191143 -4.058397 262573 367985 SH625679
LL57 3HP Rachub 53.190836 -4.057948 262602 367950 SH626679
LL57 3HR Rachub 53.191037 -4.057763 262615 367972 SH626679
LL57 3HS Rachub 53.191647 -4.057313 262647 368039 SH626680
LL57 3HT Rachub 53.192189 -4.055109 262796 368095 SH627680
LL57 3HU Rachub 53.192815 -4.058926 262543 368172 SH625681
LL57 3HW Rachub 53.191148 -4.058143 262590 367985 SH625679
LL57 3HY Rachub 53.193436 -4.055782 262755 368235 SH627682
LL57 3LA Arllechwedd 53.19651 -4.061529 262381 368588 SH623685
LL57 3LB Arllechwedd 53.196887 -4.062131 262342 368631 SH623686
LL57 3LD Arllechwedd 53.196507 -4.062741 262300 368590 SH622685
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 53.196961 -4.063017 262283 368641 SH622686
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
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