Postcodes in Gwynedd page 66 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 52,448 households with a population of about 121,810

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
SY20 9LP Corris a Mawddwy 52.711869 -3.689874 285937 314030 SH859140
SY20 9LR Corris a Mawddwy 52.709302 -3.690811 285867 313746 SH858137
SY20 9LS Corris a Mawddwy 52.709576 -3.690496 285889 313776 SH858137
SY20 9LT Corris a Mawddwy 52.708529 -3.692039 285782 313662 SH857136
SY20 9LU Corris a Mawddwy 52.710303 -3.6919 285796 313859 SH857138
SY20 9LW Corris a Mawddwy 52.71334 -3.690138 285923 314194 SH859141
SY20 9LX Corris a Mawddwy 52.727756 -3.711176 284540 315831 SH845158
SY20 9ND Corris a Mawddwy 52.673956 -3.709206 284531 309844 SH845098
SY20 9NE Corris a Mawddwy 52.674183 -3.709112 284537 309869 SH845098
SY20 9NF Corris a Mawddwy 52.676432 -3.70775 284636 310117 SH846101
SY20 9NG Corris a Mawddwy 52.682719 -3.705687 284792 310813 SH847108
SY20 9NH Corris a Mawddwy 52.687207 -3.708718 284599 311317 SH845113
SY20 9NQ Corris a Mawddwy 52.691767 -3.696067 285466 311804 SH854118
SY20 9QA Corris a Mawddwy 52.679968 -3.717533 283984 310526 SH839105
SY20 9QH Corris a Mawddwy 52.676733 -3.708693 284573 310152 SH845101
SY20 9QJ Corris a Mawddwy 52.676219 -3.7082 284605 310094 SH846100
SY20 9QL Corris a Mawddwy 52.676673 -3.710348 284461 310148 SH844101
SY20 9QN Corris a Mawddwy 52.677419 -3.710377 284461 310231 SH844102
SY20 9QR Corris a Mawddwy 52.67921 -3.73379 282883 310468 SH828104
SY20 9QW Corris a Mawddwy 52.677168 -3.70908 284548 310201 SH845102
SY20 9QY Corris a Mawddwy 52.60134 -3.85369 274554 302009 SH745020
SY20 9QZ Corris a Mawddwy 52.603851 -3.845438 275120 302274 SH751022
SY20 9RA Corris a Mawddwy 52.610645 -3.84624 275085 303031 SH750030
SY20 9RD Corris a Mawddwy 52.6462 -3.844767 275286 306983 SH752069
SY20 9RE Corris a Mawddwy 52.652978 -3.845436 275260 307738 SH752077
SY20 9RF Corris a Mawddwy 52.654234 -3.849673 274977 307885 SH749078
SY20 9RG Corris a Mawddwy 52.663102 -3.8638 274047 308896 SH740088
SY20 9RH Corris a Mawddwy 52.669034 -3.86738 273823 309562 SH738095
SY20 9RJ Corris a Mawddwy 52.655391 -3.840614 275594 307998 SH755079
SY20 9RL Corris a Mawddwy 52.6568 -3.838485 275742 308151 SH757081
SY20 9RN Corris a Mawddwy 52.657322 -3.837295 275823 308207 SH758082
SY20 9RP Corris a Mawddwy 52.663789 -3.827777 276485 308910 SH764089
SY20 9RQ Corris a Mawddwy 52.663331 -3.864682 273989 308923 SH739089
SY20 9RR Corris a Mawddwy 52.666154 -3.823113 276808 309165 SH768091
SY20 9RS Corris a Mawddwy 52.669993 -3.820759 276977 309588 SH769095
SY20 9RT Corris a Mawddwy 52.670426 -3.820082 277024 309635 SH770096
SY20 9RU Corris a Mawddwy 52.671824 -3.820421 277005 309791 SH770097
SY20 9RW Corris a Mawddwy 52.662854 -3.829571 276362 308809 SH763088
SY20 9RX Corris a Mawddwy 52.67277 -3.819691 277058 309895 SH770098
SY20 9RY Corris a Mawddwy 52.672915 -3.819046 277102 309910 SH771099
SY20 9RZ Corris a Mawddwy 52.678125 -3.808168 277852 310471 SH778104
SY20 9SA Corris a Mawddwy 52.67974 -3.813102 277523 310659 SH775106
SY20 9SB Corris a Mawddwy 52.67619 -3.828235 276490 310290 SH764102
SY20 9SD Corris a Mawddwy 52.653385 -3.841816 275507 307777 SH755077
SY20 9SH Corris a Mawddwy 52.653519 -3.842443 275464 307793 SH754077
SY20 9SJ Corris a Mawddwy 52.65163 -3.842511 275455 307583 SH754075
SY20 9SL Corris a Mawddwy 52.652584 -3.843039 275422 307690 SH754076
SY20 9SN Corris a Mawddwy 52.652441 -3.843004 275423 307674 SH754076
SY20 9SP Corris a Mawddwy 52.654538 -3.842249 275481 307906 SH754079
SY20 9SR Corris a Mawddwy 52.654247 -3.842474 275464 307874 SH754078
SY20 9SS Corris a Mawddwy 52.654336 -3.841945 275500 307883 SH755078
SY20 9ST Corris a Mawddwy 52.689294 -3.741336 282400 311602 SH823116
SY20 9SU Corris a Mawddwy 52.654219 -3.841393 275537 307869 SH755078
SY20 9SW Corris a Mawddwy 52.654587 -3.842577 275458 307912 SH754079
SY20 9SX Corris a Mawddwy 52.654452 -3.841462 275533 307895 SH755078
SY20 9SY Corris a Mawddwy 52.654338 -3.84125 275548 307882 SH755078
SY20 9SZ Corris a Mawddwy 52.65397 -3.840614 275589 307840 SH755078
SY20 9TA Corris a Mawddwy 52.653645 -3.840142 275620 307803 SH756078
SY20 9TB Corris a Mawddwy 52.653589 -3.839667 275652 307796 SH756077
SY20 9TD Corris a Mawddwy 52.653697 -3.83908 275692 307807 SH756078
SY20 9TE Corris a Mawddwy 52.653834 -3.838967 275700 307822 SH757078
SY20 9TH Corris a Mawddwy 52.654879 -3.842899 275438 307945 SH754079
SY20 9TJ Corris a Mawddwy 52.655085 -3.841814 275511 307966 SH755079
SY20 9TL Corris a Mawddwy 52.655161 -3.843266 275413 307977 SH754079
SY20 9TN Corris a Mawddwy 52.655296 -3.843804 275377 307993 SH753079
SY20 9TP Corris a Mawddwy 52.655607 -3.844616 275323 308029 SH753080
SY20 9TQ Corris a Mawddwy 52.655345 -3.84357 275393 307998 SH753079
SY20 9TR Corris a Mawddwy 52.655735 -3.845064 275294 308044 SH752080
SY20 9TS Corris a Mawddwy 52.656279 -3.847645 275120 308109 SH751081
SY20 9TT Corris a Mawddwy 52.656909 -3.848204 275084 308180 SH750081
SY20 9TW Corris a Mawddwy 52.655405 -3.844341 275341 308006 SH753080
SY20 9WD Corris a Mawddwy 52.655387 -3.84434 275341 308004 SH753080
SY20 9WL Corris a Mawddwy 52.654461 -3.844922 275299 307902 SH752079
Contains OS data © Crown copyright and database right 2025
Contains Royal Mail data © Royal Mail copyright and database right 2025
Contains National Statistics data © Crown copyright and database rights 2025
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license