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

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
LL41 3AR Diffwys a Maenofferen 52.993525 -3.929987 270559 345765 SH705457
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 52.995492 -3.931744 270447 345987 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 Diffwys a Maenofferen 52.996082 -3.9325 270398 346054 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 53.00186 -3.943757 269660 346717 SH696467
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 52.995183 -3.941878 269766 345971 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 52.998461 -3.944841 269577 346341 SH695463
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
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