Postcodes in Gwynedd page 13 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
LL41 3AS Diffwys a Maenofferen 52.994455 -3.931429 270465 345871 SH704458
LL41 3AT Diffwys a Maenofferen 52.993819 -3.932369 270400 345802 SH703458
LL41 3AU Diffwys a Maenofferen 52.994955 -3.932182 270416 345928 SH704459
LL41 3AW Diffwys a Maenofferen 52.993131 -3.930446 270527 345722 SH705457
LL41 3AX Diffwys a Maenofferen 52.990412 -3.928478 270651 345416 SH706454
LL41 3AY Diffwys a Maenofferen 52.995546 -3.931746 270447 345993 SH704459
LL41 3AZ Diffwys a Maenofferen 52.99133 -3.928429 270657 345518 SH706455
LL41 3BA Diffwys a Maenofferen 52.995863 -3.932192 270418 346029 SH704460
LL41 3BB Diffwys a Maenofferen 52.996069 -3.932217 270417 346052 SH704460
LL41 3BD Bowydd a'r Rhiw 52.996701 -3.932617 270392 346123 SH703461
LL41 3BE Bowydd a'r Rhiw 52.996871 -3.93267 270389 346142 SH703461
LL41 3BF Diffwys a Maenofferen 52.995177 -3.931774 270444 345952 SH704459
LL41 3BG Bowydd a'r Rhiw 52.996393 -3.932723 270384 346089 SH703460
LL41 3BH Bowydd a'r Rhiw 52.995842 -3.932907 270370 346028 SH703460
LL41 3BJ Diffwys a Maenofferen 52.991487 -3.928168 270675 345535 SH706455
LL41 3BL Bowydd a'r Rhiw 52.996154 -3.933651 270321 346064 SH703460
LL41 3BN Bowydd a'r Rhiw 52.995945 -3.933791 270311 346041 SH703460
LL41 3BP Bowydd a'r Rhiw 52.995179 -3.935008 270227 345958 SH702459
LL41 3BQ Diffwys a Maenofferen 52.991307 -3.92819 270673 345515 SH706455
LL41 3BS Diffwys a Maenofferen 52.994191 -3.934934 270229 345848 SH702458
LL41 3BT Bowydd a'r Rhiw 53.001944 -3.943001 269711 346725 SH697467
LL41 3BU Diffwys a Maenofferen 52.992022 -3.932289 270400 345602 SH703456
LL41 3BW Bowydd a'r Rhiw 52.995686 -3.934181 270284 346013 SH702460
LL41 3BX Diffwys a Maenofferen 52.990261 -3.928918 270621 345400 SH706453
LL41 3BY Diffwys a Maenofferen 52.994247 -3.934817 270237 345854 SH702458
LL41 3BZ Diffwys a Maenofferen 52.990578 -3.929304 270596 345436 SH705454
LL41 3DA Bowydd a'r Rhiw 52.995038 -3.933705 270314 345940 SH703459
LL41 3DB Diffwys a Maenofferen 52.994363 -3.934286 270273 345866 SH702458
LL41 3DD Diffwys a Maenofferen 52.994192 -3.932669 270381 345844 SH703458
LL41 3DE Diffwys a Maenofferen 52.99377 -3.935347 270200 345802 SH701458
LL41 3DF Diffwys a Maenofferen 52.99432 -3.934701 270245 345862 SH702458
LL41 3DG Diffwys a Maenofferen 52.993899 -3.934638 270248 345815 SH702458
LL41 3DH Diffwys a Maenofferen 52.993261 -3.934624 270247 345744 SH702457
LL41 3DJ Diffwys a Maenofferen 52.99195 -3.927339 270732 345585 SH707455
LL41 3DL Diffwys a Maenofferen 52.992677 -3.934047 270284 345678 SH702456
LL41 3DN Diffwys a Maenofferen 52.992811 -3.9352 270207 345695 SH702456
LL41 3DP Diffwys a Maenofferen 52.991737 -3.933781 270299 345573 SH702455
LL41 3DQ Diffwys a Maenofferen 52.992101 -3.925752 270839 345599 SH708455
LL41 3DR Diffwys a Maenofferen 52.991496 -3.933145 270341 345545 SH703455
LL41 3DS Diffwys a Maenofferen 52.992084 -3.934035 270283 345612 SH702456
LL41 3DT Diffwys a Maenofferen 52.992266 -3.934416 270258 345633 SH702456
LL41 3DU Diffwys a Maenofferen 52.993147 -3.933874 270297 345730 SH702457
LL41 3DW Diffwys a Maenofferen 52.992143 -3.935915 270157 345622 SH701456
LL41 3DX Diffwys a Maenofferen 52.993437 -3.929328 270603 345754 SH706457
LL41 3DY Diffwys a Maenofferen 52.992719 -3.933095 270348 345681 SH703456
LL41 3DZ Diffwys a Maenofferen 52.993613 -3.929559 270588 345774 SH705457
LL41 3EA Diffwys a Maenofferen 52.99319 -3.933429 270327 345734 SH703457
LL41 3EB Diffwys a Maenofferen 52.992038 -3.932975 270354 345605 SH703456
LL41 3ED Diffwys a Maenofferen 52.992702 -3.932483 270389 345678 SH703456
LL41 3EE Diffwys a Maenofferen 52.993652 -3.93266 270380 345784 SH703457
LL41 3EF Diffwys a Maenofferen 52.995722 -3.932544 270394 346014 SH703460
LL41 3EG Diffwys a Maenofferen 52.993187 -3.931954 270426 345731 SH704457
LL41 3EH Diffwys a Maenofferen 52.992801 -3.931937 270426 345688 SH704456
LL41 3EJ Diffwys a Maenofferen 52.993972 -3.92956 270589 345814 SH705458
LL41 3EL Diffwys a Maenofferen 52.989766 -3.933336 270323 345353 SH703453
LL41 3EN Diffwys a Maenofferen 52.990082 -3.93104 270478 345384 SH704453
LL41 3EP Diffwys a Maenofferen 52.992438 -3.935437 270190 345654 SH701456
LL41 3EQ Diffwys a Maenofferen 52.993947 -3.929991 270560 345812 SH705458
LL41 3ER Bowydd a'r Rhiw 52.993413 -3.946224 269469 345782 SH694457
LL41 3ES Bowydd a'r Rhiw 52.994454 -3.935333 270203 345878 SH702458
LL41 3ET Bowydd a'r Rhiw 52.99462 -3.938366 270000 345902 SH699459
LL41 3EU Bowydd a'r Rhiw 52.994356 -3.935284 270206 345867 SH702458
LL41 3EW Diffwys a Maenofferen 52.990346 -3.931946 270418 345415 SH704454
LL41 3EX Diffwys a Maenofferen 53.001701 -3.917565 271417 346652 SH714466
LL41 3EY Bowydd a'r Rhiw 52.99462 -3.938366 270000 345902 SH699459
LL41 3HA Bowydd a'r Rhiw 52.99462 -3.938366 270000 345902 SH699459
LL41 3HB Bowydd a'r Rhiw 52.995576 -3.939854 269903 346011 SH699460
LL41 3HD Bowydd a'r Rhiw 52.995385 -3.937789 270041 345986 SH700459
LL41 3HE Bowydd a'r Rhiw 52.994949 -3.936965 270095 345936 SH700459
LL41 3HF Bowydd a'r Rhiw 52.995616 -3.939036 269958 346014 SH699460
LL41 3HG Bowydd a'r Rhiw 52.995041 -3.938474 269994 345949 SH699459
LL41 3HH Bowydd a'r Rhiw 52.995004 -3.939128 269950 345946 SH699459
LL41 3HL Bowydd a'r Rhiw 52.995043 -3.939487 269926 345951 SH699459
LL41 3HN Bowydd a'r Rhiw 52.993559 -3.941686 269774 345790 SH697457
LL41 3HP Bowydd a'r Rhiw 52.995571 -3.941269 269808 346013 SH698460
LL41 3HR Bowydd a'r Rhiw 52.997554 -3.942059 269761 346235 SH697462
LL41 3HS Bowydd a'r Rhiw 52.998642 -3.942033 269766 346356 SH697463
LL41 3HT Bowydd a'r Rhiw 52.997877 -3.942103 269759 346271 SH697462
LL41 3HU Bowydd a'r Rhiw 52.99905 -3.942364 269745 346402 SH697464
LL41 3HW Bowydd a'r Rhiw 52.995276 -3.941703 269778 345981 SH697459
LL41 3HY Bowydd a'r Rhiw 52.999269 -3.942717 269722 346427 SH697464
LL41 3LA Bowydd a'r Rhiw 52.999239 -3.942954 269706 346424 SH697464
LL41 3LB Bowydd a'r Rhiw 52.999412 -3.942768 269719 346443 SH697464
LL41 3LD Bowydd a'r Rhiw 52.99937 -3.943168 269692 346439 SH696464
LL41 3LE Bowydd a'r Rhiw 52.999742 -3.942976 269706 346480 SH697464
LL41 3LF Bowydd a'r Rhiw 53.000056 -3.94299 269706 346515 SH697465
LL41 3LG Bowydd a'r Rhiw 53.000111 -3.9435 269672 346522 SH696465
LL41 3LH Bowydd a'r Rhiw 52.999699 -3.944465 269606 346478 SH696464
LL41 3LJ Diffwys a Maenofferen 52.989863 -3.927976 270683 345354 SH706453
LL41 3LL Bowydd a'r Rhiw 52.999092 -3.944765 269584 346411 SH695464
LL41 3LN Bowydd a'r Rhiw 53.000046 -3.944138 269629 346516 SH696465
LL41 3LP Bowydd a'r Rhiw 52.998736 -3.945077 269562 346372 SH695463
LL41 3LQ Diffwys a Maenofferen 52.991096 -3.930087 270545 345495 SH705454
LL41 3LR Bowydd a'r Rhiw 52.998423 -3.946106 269492 346339 SH694463
LL41 3LS Bowydd a'r Rhiw 52.998381 -3.945896 269506 346334 SH695463
LL41 3LT Bowydd a'r Rhiw 52.998652 -3.944179 269622 346361 SH696463
LL41 3LU Bowydd a'r Rhiw 53.000706 -3.942856 269717 346587 SH697465
LL41 3LW Bowydd a'r Rhiw 52.998713 -3.945389 269541 346370 SH695463
LL41 3LX Diffwys a Maenofferen 52.989856 -3.927291 270729 345352 SH707453
LL41 3LY Bowydd a'r Rhiw 53.00861 -3.944388 269638 347469 SH696474
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Contains National Statistics data © Crown copyright and database rights 2026
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
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