Postcodes in Gwynedd page 17 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 9AP Diffwys a Maenofferen 52.99432 -3.934701 270245 345862 SH702458
LL42 1AA Abermaw 52.723506 -4.056676 261197 315969 SH611159
LL42 1AB Abermaw 52.723339 -4.056446 261212 315950 SH612159
LL42 1AD Abermaw 52.723266 -4.055984 261242 315941 SH612159
LL42 1AE Abermaw 52.722994 -4.055098 261301 315909 SH613159
LL42 1AF Abermaw 52.723554 -4.055983 261243 315973 SH612159
LL42 1AG Abermaw 52.723039 -4.054048 261373 315912 SH613159
LL42 1AH Abermaw 52.723778 -4.058126 261099 316002 SH610160
LL42 1AJ Abermaw 52.73959 -4.071729 260232 317787 SH602177
LL42 1AL Abermaw 52.732276 -4.047625 261835 316927 SH618169
LL42 1AN Abermaw 52.722778 -4.055102 261301 315885 SH613158
LL42 1AP Abermaw 52.727791 -4.06261 260809 316457 SH608164
LL42 1AQ Abermaw 52.737415 -4.070633 260299 317543 SH602175
LL42 1AR Abermaw 52.722561 -4.054648 261330 315860 SH613158
LL42 1AS Abermaw 52.722518 -4.054542 261338 315855 SH613158
LL42 1AT Abermaw 52.722517 -4.054098 261367 315854 SH613158
LL42 1AU Abermaw 52.722711 -4.053796 261388 315875 SH613158
LL42 1AW Abermaw 52.722535 -4.05515 261296 315858 SH612158
LL42 1AX Abermaw 52.739665 -4.075169 260000 317802 SH599178
LL42 1AY Abermaw 52.722479 -4.053696 261395 315849 SH613158
LL42 1AZ Abermaw 52.741947 -4.075752 259968 318057 SH599180
LL42 1BA Abermaw 52.722072 -4.052774 261455 315802 SH614158
LL42 1BB Abermaw 52.721262 -4.047642 261799 315702 SH617157
LL42 1BD Abermaw 52.722103 -4.053604 261400 315807 SH613158
LL42 1BE Abermaw 52.721907 -4.053492 261406 315785 SH614157
LL42 1BF Abermaw 52.725454 -4.063595 260736 316199 SH607161
LL42 1BG Abermaw 52.721951 -4.053538 261404 315790 SH614157
LL42 1BH Abermaw 52.721889 -4.052987 261441 315782 SH614157
LL42 1BJ Abermaw 52.735071 -4.069959 260337 317281 SH603172
LL42 1BL Abermaw 52.720947 -4.051299 261552 315674 SH615156
LL42 1BN Abermaw 52.720804 -4.051263 261553 315658 SH615156
LL42 1BP Abermaw 52.720806 -4.051663 261526 315659 SH615156
LL42 1BQ Abermaw 52.736521 -4.070843 260282 317444 SH602174
LL42 1BS Abermaw 52.720579 -4.051238 261554 315633 SH615156
LL42 1BT Abermaw 52.720466 -4.051558 261533 315621 SH615156
LL42 1BU Abermaw 52.720304 -4.05158 261531 315603 SH615156
LL42 1BW Abermaw 52.720691 -4.052043 261500 315647 SH615156
LL42 1BX Abermaw 52.732637 -4.068778 260408 317008 SH604170
LL42 1BY Abermaw 52.720241 -4.051548 261532 315596 SH615155
LL42 1DA Abermaw 52.720287 -4.052038 261500 315602 SH614156
LL42 1DB Abermaw 52.720219 -4.051265 261552 315593 SH615155
LL42 1DD Abermaw 52.720209 -4.050835 261581 315591 SH615155
LL42 1DE Abermaw 52.725138 -4.056916 261186 316151 SH611161
LL42 1DF Abermaw 52.72284 -4.054616 261334 315891 SH613158
LL42 1DJ Abermaw 52.724718 -4.042725 262142 316077 SH621160
LL42 1DL Abermaw 52.722243 -4.054307 261352 315824 SH613158
LL42 1DN Abermaw 52.721499 -4.052658 261461 315738 SH614157
LL42 1DP Abermaw 52.722087 -4.053974 261374 315806 SH613158
LL42 1DQ Abermaw 52.721941 -4.044757 261996 315772 SH619157
LL42 1DR Abermaw 52.721787 -4.053678 261394 315772 SH613157
LL42 1DS Abermaw 52.721179 -4.052939 261442 315703 SH614157
LL42 1DT Abermaw 52.722465 -4.043034 262114 315827 SH621158
LL42 1DU Abermaw 52.720978 -4.053107 261430 315681 SH614156
LL42 1DW Abermaw 52.721666 -4.05388 261380 315759 SH613157
LL42 1DX Abermaw 52.739716 -4.031175 262969 317723 SH629177
LL42 1DY Abermaw 52.740535 -4.024843 263399 317802 SH633178
LL42 1DZ Abermaw 52.752129 -4.007613 264599 319059 SH645190
LL42 1EA Abermaw 52.721134 -4.05504 261299 315702 SH612157
LL42 1EB Abermaw 52.721134 -4.05504 261299 315702 SH612157
LL42 1ED Abermaw 52.720612 -4.052439 261473 315639 SH614156
LL42 1EE Abermaw 52.720461 -4.052861 261444 315623 SH614156
LL42 1EF Abermaw 52.720733 -4.053762 261385 315655 SH613156
LL42 1EG Abermaw 52.720254 -4.051874 261510 315598 SH615155
LL42 1EH Abermaw 52.720093 -4.051274 261551 315579 SH615155
LL42 1EL Abermaw 52.720146 -4.049781 261651 315582 SH616155
LL42 1EN Abermaw 52.732866 -4.063382 260774 317023 SH607170
LL42 1EP Abermaw 52.726181 -4.060031 260978 316273 SH609162
LL42 1EQ Abermaw 52.719436 -4.045084 261966 315494 SH619154
LL42 1ER Abermaw 52.719912 -4.051873 261509 315560 SH615155
LL42 1ES Abermaw 52.719876 -4.052404 261474 315557 SH614155
LL42 1ET Abermaw 52.719482 -4.051793 261514 315512 SH615155
LL42 1EU Abermaw 52.719487 -4.052001 261499 315513 SH614155
LL42 1EW Abermaw 52.720236 -4.052377 261476 315597 SH614155
LL42 1EY Abermaw 52.719563 -4.052301 261479 315522 SH614155
LL42 1GA Abermaw 52.719363 -4.053476 261399 315502 SH613155
LL42 1HA Abermaw 52.719124 -4.052191 261486 315473 SH614154
LL42 1HB Abermaw 52.718713 -4.052586 261458 315428 SH614154
LL42 1HD Abermaw 52.725761 -4.062499 260811 316231 SH608162
LL42 1HF Abermaw 52.725232 -4.060845 260921 316169 SH609161
LL42 1HG Abermaw 52.725023 -4.060954 260912 316146 SH609161
LL42 1HH Abermaw 52.724463 -4.061105 260900 316084 SH609160
LL42 1HL Abermaw 52.725462 -4.061552 260873 316196 SH608161
LL42 1HN Abermaw 52.724627 -4.060979 260910 316102 SH609161
LL42 1HP Abermaw 52.723076 -4.058137 261097 315924 SH610159
LL42 1HR Abermaw 52.725967 -4.061976 260846 316253 SH608162
LL42 1HS Abermaw 52.726186 -4.061808 260859 316277 SH608162
LL42 1HT Abermaw 52.725794 -4.063167 260765 316236 SH607162
LL42 1HU Abermaw 52.72619 -4.063126 260770 316280 SH607162
LL42 1HW Abermaw 52.725318 -4.06313 260766 316183 SH607161
LL42 1HX Abermaw 52.725419 -4.063534 260740 316195 SH607161
LL42 1HY Abermaw 52.726769 -4.064472 260680 316347 SH606163
LL42 1LA Abermaw 52.7265 -4.063437 260750 316315 SH607163
LL42 1LB Abermaw 52.727313 -4.063712 260734 316406 SH607164
LL42 1LD Abermaw 52.728803 -4.065397 260625 316575 SH606165
LL42 1LE Abermaw 52.727503 -4.064655 260670 316429 SH606164
LL42 1LF Abermaw 52.728624 -4.065848 260594 316556 SH605165
LL42 1LG Abermaw 52.730519 -4.0665 260556 316768 SH605167
LL42 1LH Abermaw 52.726464 -4.063421 260750 316311 SH607163
LL42 1LL Abermaw 52.726304 -4.056586 261212 316280 SH612162
LL42 1LN Abermaw 52.721463 -4.053708 261390 315736 SH613157
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