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 |
|---|---|---|---|---|---|---|
| LL42 1LP | Abermaw | 52.722368 | -4.055438 | 261277 | 315840 | SH612158 |
| LL42 1LR | Abermaw | 52.721883 | -4.055415 | 261277 | 315786 | SH612157 |
| LL42 1LS | Abermaw | 52.722068 | -4.056135 | 261228 | 315808 | SH612158 |
| LL42 1LT | Abermaw | 52.721944 | -4.055507 | 261271 | 315793 | SH612157 |
| LL42 1LU | Abermaw | 52.722653 | -4.056074 | 261234 | 315873 | SH612158 |
| LL42 1LW | Abermaw | 52.722119 | -4.054745 | 261323 | 315811 | SH613158 |
| LL42 1LX | Abermaw | 52.720587 | -4.04613 | 261899 | 315624 | SH618156 |
| LL42 1LY | Abermaw | 52.722079 | -4.057542 | 261134 | 315812 | SH611158 |
| LL42 1LZ | Abermaw | 52.731219 | -4.062431 | 260832 | 316838 | SH608168 |
| LL42 1NA | Abermaw | 52.723092 | -4.059293 | 261018 | 315928 | SH610159 |
| LL42 1NB | Abermaw | 52.722926 | -4.0585 | 261072 | 315908 | SH610159 |
| LL42 1ND | Abermaw | 52.722823 | -4.058199 | 261092 | 315896 | SH610158 |
| LL42 1NE | Abermaw | 52.723688 | -4.061216 | 260891 | 315998 | SH608159 |
| LL42 1NF | Abermaw | 52.721366 | -4.056161 | 261225 | 315730 | SH612157 |
| LL42 1NG | Abermaw | 52.721654 | -4.057211 | 261155 | 315764 | SH611157 |
| LL42 1NH | Abermaw | 52.723599 | -4.060131 | 260964 | 315986 | SH609159 |
| LL42 1NL | Abermaw | 52.723463 | -4.059147 | 261030 | 315969 | SH610159 |
| LL42 1NN | Abermaw | 52.723194 | -4.059105 | 261032 | 315939 | SH610159 |
| LL42 1NP | Abermaw | 52.724013 | -4.060639 | 260931 | 316033 | SH609160 |
| LL42 1NQ | Abermaw | 52.72379 | -4.06051 | 260939 | 316008 | SH609160 |
| LL42 1NR | Abermaw | 52.724349 | -4.060418 | 260947 | 316070 | SH609160 |
| LL42 1NS | Abermaw | 52.724725 | -4.06051 | 260942 | 316112 | SH609161 |
| LL42 1NW | Abermaw | 52.723981 | -4.059868 | 260982 | 316028 | SH609160 |
| LL42 1NY | Abermaw | 52.724005 | -4.056937 | 261180 | 316025 | SH611160 |
| LL42 1PA | Abermaw | 52.731407 | -4.063506 | 260761 | 316861 | SH607168 |
| LL42 1PB | Abermaw | 52.723506 | -4.056676 | 261197 | 315969 | SH611159 |
| LL42 1PD | Abermaw | 52.724195 | -4.05739 | 261151 | 316047 | SH611160 |
| LL42 1PE | Abermaw | 52.724969 | -4.057323 | 261157 | 316133 | SH611161 |
| LL42 1PF | Abermaw | 52.724568 | -4.057645 | 261134 | 316089 | SH611160 |
| LL42 1PG | Abermaw | 52.723925 | -4.057392 | 261150 | 316017 | SH611160 |
| LL42 1PH | Abermaw | 52.724071 | -4.057799 | 261122 | 316034 | SH611160 |
| LL42 1PL | Abermaw | 52.725605 | -4.060092 | 260973 | 316209 | SH609162 |
| LL42 1PN | Abermaw | 52.724754 | -4.058349 | 261088 | 316111 | SH610161 |
| LL42 1PP | Abermaw | 52.725707 | -4.060423 | 260951 | 316221 | SH609162 |
| LL42 1PR | Abermaw | 52.724981 | -4.057708 | 261132 | 316135 | SH611161 |
| LL42 1PS | Abermaw | 52.725749 | -4.057967 | 261116 | 316221 | SH611162 |
| LL42 1PT | Abermaw | 52.725327 | -4.059517 | 261010 | 316177 | SH610161 |
| LL42 1PU | Abermaw | 52.725549 | -4.05969 | 261000 | 316202 | SH609162 |
| LL42 1PW | Abermaw | 52.724843 | -4.057894 | 261119 | 316120 | SH611161 |
| LL42 1PY | Abermaw | 52.725551 | -4.059557 | 261008 | 316202 | SH610162 |
| LL42 1RB | Abermaw | 52.725924 | -4.05722 | 261167 | 316239 | SH611162 |
| LL42 1RD | Abermaw | 52.726784 | -4.057438 | 261155 | 316335 | SH611163 |
| LL42 1RE | Abermaw | 52.727471 | -4.057692 | 261141 | 316412 | SH611164 |
| LL42 1RF | Abermaw | 52.727046 | -4.059435 | 261021 | 316368 | SH610163 |
| LL42 1RG | Abermaw | 52.726447 | -4.059732 | 261000 | 316302 | SH609163 |
| LL42 1RH | Abermaw | 52.728244 | -4.059817 | 261000 | 316502 | SH609165 |
| LL42 1RL | Abermaw | 52.728401 | -4.059039 | 261053 | 316518 | SH610165 |
| LL42 1RN | Abermaw | 52.727599 | -4.059698 | 261005 | 316430 | SH610164 |
| LL42 1RR | Abermaw | 52.750146 | -4.077327 | 259888 | 318972 | SH598189 |
| LL42 1RS | Dyffryn Ardudwy | 52.752164 | -4.080209 | 259700 | 319202 | SH596192 |
| LL42 1RT | Abermaw | 52.749443 | -4.081561 | 259600 | 318902 | SH595189 |
| LL42 1RW | Abermaw | 52.725943 | -4.059264 | 261030 | 316245 | SH610162 |
| LL42 1SU | Abermaw | 52.720692 | -4.044698 | 261996 | 315633 | SH619156 |
| LL42 1SY | Abermaw | 52.720414 | -4.044641 | 261999 | 315602 | SH619156 |
| LL42 1TB | Abermaw | 52.720102 | -4.044493 | 262008 | 315567 | SH620155 |
| LL42 1TD | Abermaw | 52.72045 | -4.043103 | 262103 | 315603 | SH621156 |
| LL42 1TE | Abermaw | 52.721391 | -4.036987 | 262519 | 315696 | SH625156 |
| LL42 1TF | Abermaw | 52.7302 | -4.030318 | 262997 | 316663 | SH629166 |
| LL42 1TG | Abermaw | 52.736166 | -4.021604 | 263604 | 317310 | SH636173 |
| LL42 1TH | Abermaw | 52.744405 | -4.002384 | 264928 | 318190 | SH649181 |
| LL42 1TL | Abermaw | 52.743558 | -3.999782 | 265101 | 318091 | SH651180 |
| LL42 1TN | Brithdir and Llanfachreth/Ganllwyd/Llanelltyd | 52.744867 | -3.986108 | 266028 | 318211 | SH660182 |
| LL42 1WY | Abermaw | 52.721568 | -4.053861 | 261380 | 315748 | SH613157 |
| LL42 1YA | Abermaw | 52.733802 | -4.067441 | 260502 | 317135 | SH605171 |
| LL42 1YF | Abermaw | 52.729482 | -4.061016 | 260922 | 316642 | SH609166 |
| LL42 1YG | Abermaw | 52.730285 | -4.062387 | 260832 | 316734 | SH608167 |
| LL42 1YH | Abermaw | 52.730094 | -4.061978 | 260859 | 316712 | SH608167 |
| LL42 1YL | Abermaw | 52.729201 | -4.062706 | 260807 | 316614 | SH608166 |
| LL42 1YN | Abermaw | 52.730662 | -4.064004 | 260725 | 316779 | SH607167 |
| LL42 1YP | Abermaw | 52.73314 | -4.065232 | 260650 | 317057 | SH606170 |
| LL42 1YR | Abermaw | 52.732305 | -4.066688 | 260549 | 316967 | SH605169 |
| LL42 1YS | Abermaw | 52.734515 | -4.066793 | 260549 | 317213 | SH605172 |
| LL42 1YT | Abermaw | 52.735417 | -4.068672 | 260425 | 317317 | SH604173 |
| LL42 1YU | Abermaw | 52.736361 | -4.069236 | 260389 | 317423 | SH603174 |
| LL42 1YW | Abermaw | 52.730887 | -4.062904 | 260799 | 316802 | SH607168 |
| LL42 1YY | Abermaw | 52.73688 | -4.069882 | 260348 | 317482 | SH603174 |
| LL42 1ZA | Abermaw | 52.726304 | -4.056586 | 261212 | 316280 | SH612162 |
| LL42 1ZB | Abermaw | 52.726304 | -4.056586 | 261212 | 316280 | SH612162 |
| LL42 1ZD | Abermaw | 52.723506 | -4.056676 | 261197 | 315969 | SH611159 |
| LL42 1ZE | Abermaw | 52.726125 | -4.056504 | 261216 | 316260 | SH612162 |
| LL42 1ZF | Abermaw | 52.726125 | -4.056504 | 261216 | 316260 | SH612162 |
| LL42 1ZG | Abermaw | 52.726304 | -4.056586 | 261212 | 316280 | SH612162 |
| LL42 1ZH | Abermaw | 52.726125 | -4.056504 | 261216 | 316260 | SH612162 |
| LL42 9AA | De Dolgellau | 52.741918 | -3.884717 | 272863 | 317699 | SH728176 |
| LL42 9ZZ | De Dolgellau | 52.741918 | -3.884717 | 272863 | 317699 | SH728176 |
| LL43 2AA | Dyffryn Ardudwy | 52.776044 | -4.09352 | 258879 | 321884 | SH588218 |
| LL43 2AB | Dyffryn Ardudwy | 52.777453 | -4.094166 | 258840 | 322042 | SH588220 |
| LL43 2AD | Dyffryn Ardudwy | 52.776576 | -4.097979 | 258580 | 321952 | SH585219 |
| LL43 2AE | Dyffryn Ardudwy | 52.77816 | -4.095386 | 258760 | 322123 | SH587221 |
| LL43 2AF | Dyffryn Ardudwy | 52.779485 | -4.096176 | 258711 | 322272 | SH587222 |
| LL43 2AG | Dyffryn Ardudwy | 52.776223 | -4.091008 | 259049 | 321899 | SH590218 |
| LL43 2AH | Dyffryn Ardudwy | 52.776138 | -4.089714 | 259136 | 321887 | SH591218 |
| LL43 2AJ | Dyffryn Ardudwy | 52.771282 | -4.101979 | 258293 | 321371 | SH582213 |
| LL43 2AL | Dyffryn Ardudwy | 52.777137 | -4.092179 | 258973 | 322003 | SH589220 |
| LL43 2AN | Dyffryn Ardudwy | 52.775394 | -4.092614 | 258938 | 321810 | SH589218 |
| LL43 2AP | Dyffryn Ardudwy | 52.774356 | -4.092357 | 258952 | 321694 | SH589216 |
| LL43 2AQ | Dyffryn Ardudwy | 52.772624 | -4.100279 | 258412 | 321517 | SH584215 |
| LL43 2AR | Dyffryn Ardudwy | 52.773494 | -4.09534 | 258748 | 321604 | SH587216 |
| LL43 2AS | Dyffryn Ardudwy | 52.774703 | -4.092537 | 258941 | 321733 | SH589217 |
| LL43 2AT | Dyffryn Ardudwy | 52.781588 | -4.065479 | 260788 | 322446 | SH607224 |