Postcodes in Gwynedd page 46 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
LL55 2EN Peblig 53.136836 -4.260848 248858 362353 SH488623
LL55 2EP Peblig 53.137323 -4.262159 248772 362410 SH487624
LL55 2EQ Llanrug 53.147597 -4.197018 253164 363417 SH531634
LL55 2ER Peblig 53.136929 -4.263035 248712 362368 SH487623
LL55 2ES Peblig 53.136596 -4.26399 248647 362333 SH486623
LL55 2ET Peblig 53.136851 -4.264766 248596 362363 SH485623
LL55 2EU Peblig 53.137052 -4.263655 248671 362383 SH486623
LL55 2EW Peblig 53.137575 -4.261215 248836 362436 SH488624
LL55 2EX Canol Tref Caernarfon 53.138223 -4.27348 248018 362534 SH480625
LL55 2EZ Y Bontnewydd 53.116561 -4.271709 248060 360121 SH480601
LL55 2FA Peblig 53.138251 -4.252594 249415 362493 SH494624
LL55 2GA Hendre 53.136304 -4.264677 248600 362302 SH485623
LL55 2GB Hendre 53.136304 -4.264677 248600 362302 SH485623
LL55 2HB Peblig 53.138289 -4.25436 249297 362501 SH492625
LL55 2HE Canol Tref Caernarfon 53.137961 -4.270207 248236 362498 SH482624
LL55 2HG Canol Tref Caernarfon 53.137987 -4.270746 248200 362502 SH481625
LL55 2HH Canol Tref Caernarfon 53.13797 -4.2707 248203 362500 SH482624
LL55 2HL Canol Tref Caernarfon 53.137711 -4.26964 248273 362469 SH482624
LL55 2HN Canol Tref Caernarfon 53.140995 -4.272864 248069 362841 SH480628
LL55 2HP Canol Tref Caernarfon 53.136013 -4.269595 248270 362280 SH482622
LL55 2HR Hendre 53.134772 -4.269111 248298 362141 SH482621
LL55 2HS Hendre 53.133727 -4.268787 248316 362024 SH483620
LL55 2HT Canol Tref Caernarfon 53.135697 -4.268727 248327 362243 SH483622
LL55 2HU Canol Tref Caernarfon 53.136157 -4.268661 248333 362294 SH483622
LL55 2HW Canol Tref Caernarfon 53.135246 -4.26972 248259 362195 SH482621
LL55 2HY Canol Tref Caernarfon 53.136451 -4.268766 248327 362327 SH483623
LL55 2LA Canol Tref Caernarfon 53.136689 -4.268585 248340 362353 SH483623
LL55 2LB Canol Tref Caernarfon 53.136334 -4.269269 248293 362315 SH482623
LL55 2LD Canol Tref Caernarfon 53.13721 -4.269046 248311 362412 SH483624
LL55 2LE Canol Tref Caernarfon 53.137221 -4.269405 248287 362414 SH482624
LL55 2LF Peblig 53.137858 -4.268108 248376 362482 SH483624
LL55 2LG Peblig 53.137174 -4.266218 248500 362402 SH484624
LL55 2LH Canol Tref Caernarfon 53.137053 -4.26835 248357 362393 SH483623
LL55 2LJ Hendre 53.133177 -4.266949 248437 361959 SH484619
LL55 2LL Canol Tref Caernarfon 53.136399 -4.267283 248426 362318 SH484623
LL55 2LN Peblig 53.136998 -4.265087 248575 362380 SH485623
LL55 2LP Hendre 53.135825 -4.265295 248557 362250 SH485622
LL55 2LQ Hendre 53.133168 -4.268862 248309 361962 SH483619
LL55 2LR Hendre 53.135339 -4.266286 248489 362198 SH484621
LL55 2LS Hendre 53.135108 -4.264719 248593 362169 SH485621
LL55 2LT Hendre 53.134692 -4.265325 248551 362124 SH485621
LL55 2LU Hendre 53.134091 -4.265712 248523 362058 SH485620
LL55 2LW Hendre 53.136037 -4.264095 248638 362271 SH486622
LL55 2LX Hendre 53.131499 -4.261599 248789 361761 SH487617
LL55 2LY Hendre 53.134264 -4.263718 248657 362073 SH486620
LL55 2LZ Hendre 53.133436 -4.261372 248811 361976 SH488619
LL55 2NA Canol Tref Caernarfon 53.139413 -4.273737 248005 362667 SH480626
LL55 2NB Canol Tref Caernarfon 53.139331 -4.273837 247998 362658 SH479626
LL55 2ND Canol Tref Caernarfon 53.13911 -4.274065 247982 362634 SH479626
LL55 2NE Canol Tref Caernarfon 53.139653 -4.273884 247996 362694 SH479626
LL55 2NF Canol Tref Caernarfon 53.139732 -4.27495 247925 362705 SH479627
LL55 2NG Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2NH Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2NJ Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2NL Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2NN Canol Tref Caernarfon 53.139184 -4.274921 247925 362644 SH479626
LL55 2NP Canol Tref Caernarfon 53.139277 -4.275255 247903 362655 SH479626
LL55 2NR Canol Tref Caernarfon 53.1388 -4.275275 247900 362602 SH478626
LL55 2NS Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2NT Canol Tref Caernarfon 53.1388 -4.275275 247900 362602 SH478626
LL55 2NU Canol Tref Caernarfon 53.1388 -4.275275 247900 362602 SH478626
LL55 2NW Canol Tref Caernarfon 53.139159 -4.27483 247931 362641 SH479626
LL55 2NY Canol Tref Caernarfon 53.1388 -4.275275 247900 362602 SH478626
LL55 2PA Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2PB Canol Tref Caernarfon 53.138638 -4.274817 247930 362583 SH479625
LL55 2PD Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2PE Canol Tref Caernarfon 53.138771 -4.276768 247800 362602 SH477626
LL55 2PF Canol Tref Caernarfon 53.137957 -4.27375 247999 362505 SH479625
LL55 2PG Canol Tref Caernarfon 53.139192 -4.27543 247891 362646 SH478626
LL55 2PH Canol Tref Caernarfon 53.137936 -4.272463 248085 362500 SH480624
LL55 2PL Y Bontnewydd 53.131672 -4.243878 249975 361743 SH499617
LL55 2PN Canol Tref Caernarfon 53.138616 -4.273575 248013 362578 SH480625
LL55 2PP Canol Tref Caernarfon 53.137901 -4.275227 247900 362502 SH478625
LL55 2PQ Canol Tref Caernarfon 53.139062 -4.272358 248096 362625 SH480626
LL55 2PR Canol Tref Caernarfon 53.13873 -4.273267 248034 362590 SH480625
LL55 2PS Canol Tref Caernarfon 53.138284 -4.272601 248077 362539 SH480625
LL55 2PT Canol Tref Caernarfon 53.138241 -4.27206 248113 362533 SH481625
LL55 2PU Canol Tref Caernarfon 53.138704 -4.272264 248101 362585 SH481625
LL55 2PW Canol Tref Caernarfon 53.138487 -4.273284 248032 362563 SH480625
LL55 2PY Y Bontnewydd 53.132266 -4.240546 250200 361802 SH501618
LL55 2RA Canol Tref Caernarfon 53.140625 -4.273876 248000 362802 SH479628
LL55 2RB Canol Tref Caernarfon 53.13837 -4.271409 248157 362546 SH481625
LL55 2RD Canol Tref Caernarfon 53.138121 -4.271247 248167 362518 SH481625
LL55 2RE Peblig 53.138781 -4.269682 248274 362588 SH482625
LL55 2RF Canol Tref Caernarfon 53.138202 -4.26986 248260 362524 SH482625
LL55 2RG Peblig 53.138776 -4.268515 248352 362585 SH483625
LL55 2RH Peblig 53.13951 -4.268195 248376 362666 SH483626
LL55 2RJ Peblig 53.139987 -4.266306 248504 362715 SH485627
LL55 2RL Peblig 53.138621 -4.267655 248409 362566 SH484625
LL55 2RN Peblig 53.138935 -4.266759 248470 362599 SH484625
LL55 2RP Peblig 53.139522 -4.266162 248512 362663 SH485626
LL55 2RQ Peblig 53.138849 -4.265633 248545 362587 SH485625
LL55 2RR Peblig 53.13849 -4.264164 248642 362544 SH486625
LL55 2RS Peblig 53.13787 -4.263175 248706 362473 SH487624
LL55 2RT Peblig 53.13861 -4.262092 248781 362553 SH487625
LL55 2RU Peblig 53.139847 -4.265162 248580 362697 SH485626
LL55 2RW Peblig 53.138846 -4.265319 248566 362586 SH485625
LL55 2RX Hendre 53.134305 -4.258233 249024 362066 SH490620
LL55 2RY Peblig 53.13924 -4.27011 248247 362640 SH482626
LL55 2RZ Peblig 53.138569 -4.266142 248510 362557 SH485625
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