Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Parish,Altitude,Country,Last Updated,Quality,LSOA Code,LSOA Name,LSOA Code 2021,LSOA Name 2021 LL55 2AG,Yes,53.132365,-4.261928,248770,361858,SH487618,1980-01-01,,Caernarfon,29,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2BZ,Yes,53.132636,-4.260896,248840,361886,SH488618,1980-01-01,,Caernarfon,30,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2DJ,Yes,53.132140,-4.263815,248643,361837,SH486618,1983-01-01,,Caernarfon,29,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2DQ,Yes,53.131918,-4.261292,248811,361807,SH488618,1993-01-01,,Caernarfon,28,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2DX,Yes,53.132657,-4.259298,248947,361885,SH489618,1984-10-01,,Caernarfon,29,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2GA,No,53.136304,-4.264677,248600,362302,SH485623,1993-01-01,1994-12-01,Caernarfon,43,Wales,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2GB,No,53.136304,-4.264677,248600,362302,SH485623,1994-05-01,1995-01-01,Caernarfon,43,Wales,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2HR,Yes,53.134772,-4.269111,248298,362141,SH482621,1980-01-01,,Caernarfon,24,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000111,Gwynedd 007C,W01000111,Gwynedd 007C LL55 2HS,Yes,53.133727,-4.268787,248316,362024,SH483620,1980-01-01,,Caernarfon,26,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000111,Gwynedd 007C,W01000111,Gwynedd 007C LL55 2LJ,Yes,53.133177,-4.266949,248437,361959,SH484619,1993-01-01,,Caernarfon,33,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000111,Gwynedd 007C,W01000111,Gwynedd 007C LL55 2LP,Yes,53.135825,-4.265295,248557,362250,SH485622,1980-01-01,,Caernarfon,40,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LQ,Yes,53.133168,-4.268862,248309,361962,SH483619,1993-01-01,,Caernarfon,27,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LR,Yes,53.135339,-4.266286,248489,362198,SH484621,1980-01-01,,Caernarfon,37,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000111,Gwynedd 007C,W01000111,Gwynedd 007C LL55 2LS,Yes,53.135108,-4.264719,248593,362169,SH485621,1980-01-01,,Caernarfon,37,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LT,Yes,53.134692,-4.265325,248551,362124,SH485621,1980-01-01,,Caernarfon,35,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LU,Yes,53.134091,-4.265712,248523,362058,SH485620,1980-01-01,,Caernarfon,34,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000111,Gwynedd 007C,W01000111,Gwynedd 007C LL55 2LW,Yes,53.136037,-4.264095,248638,362271,SH486622,1980-01-01,,Caernarfon,42,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LX,Yes,53.131499,-4.261599,248789,361761,SH487617,1980-01-01,,Caernarfon,26,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LY,Yes,53.134264,-4.263718,248657,362073,SH486620,2019-11-01,,Caernarfon,36,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2LZ,Yes,53.133436,-4.261372,248811,361976,SH488619,1980-01-01,,Caernarfon,31,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2RX,Yes,53.134305,-4.258233,249024,362066,SH490620,2002-07-01,,Caernarfon,32,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2SB,No,53.133695,-4.260055,248900,362002,SH488620,1991-09-01,1992-12-01,Caernarfon,33,Wales,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2SD,No,53.133695,-4.260055,248900,362002,SH488620,1980-01-01,1994-12-01,Caernarfon,33,Wales,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2SF,Yes,53.133706,-4.260444,248874,362004,SH488620,2000-12-01,,Caernarfon,33,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2SX,Yes,53.134227,-4.259036,248970,362059,SH489620,1995-07-01,,Caernarfon,33,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2SZ,Yes,53.134518,-4.260262,248889,362094,SH488620,1995-07-01,,Caernarfon,35,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2TU,No,53.134718,-4.263921,248645,362124,SH486621,1994-05-01,1999-12-01,Caernarfon,36,Wales,2025-09-17,Postcode sector mean (mainly PO Boxes),W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2UP,Yes,53.132983,-4.265340,248544,361934,SH485619,1991-01-01,,Caernarfon,32,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2UR,Yes,53.132760,-4.263369,248675,361905,SH486619,1980-01-01,,Caernarfon,30,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2US,Yes,53.132967,-4.268568,248328,361939,SH483619,1998-12-01,,Caernarfon,29,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2UT,Yes,53.132756,-4.267809,248378,361914,SH483619,1980-01-01,,Caernarfon,32,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2UU,Yes,53.133625,-4.263744,248653,362002,SH486620,1980-01-01,,Caernarfon,33,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2UY,Yes,53.133042,-4.264162,248623,361938,SH486619,1980-01-01,,Caernarfon,32,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2WA,No,53.132712,-4.264488,248600,361902,SH485619,1994-05-01,1996-12-01,Caernarfon,31,Wales,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2WJ,No,53.134718,-4.263921,248645,362124,SH486621,1999-06-01,2000-07-01,Caernarfon,36,Wales,2025-09-17,Postcode sector mean (mainly PO Boxes),W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2YE,Yes,53.130100,-4.262796,248704,361608,SH487616,1980-01-01,,Caernarfon,22,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2YF,Yes,53.130396,-4.265233,248542,361646,SH485616,1980-01-01,,Caernarfon,18,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D LL55 2YL,Yes,53.128457,-4.263622,248643,361427,SH486614,1980-01-01,,Caernarfon,15,Wales,2025-09-17,Within the building of the matched address closest to the postcode mean,W01000110,Gwynedd 006D,W01000110,Gwynedd 006D