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
Active postcode
Postcode 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 |