Postal sector LL55 1
- Bridge Street, Caernarfon, LL55 1AB
- Bangor Street, Caernarfon, LL55 1AE
- Bridge Street, Caernarfon, LL55 1AF
- Eastgate Street, Caernarfon, LL55 1AG
- Cremlyn, Caernarfon, LL55 1AJ
- Turf Square, Caernarfon, LL55 1AN
- Bangor Street, Caernarfon, LL55 1AP
- Bro Rhos, Caernarfon, LL55 1AQ
- Bangor Street, Caernarfon, LL55 1AR
- Pavilion Hill, Caernarfon, LL55 1AS
- Bangor Street, Caernarfon, LL55 1AT
- Caernarfon, LL55 1AX
- Caernarfon, LL55 1AZ
- North Road, Caernarfon, LL55 1BA
- Bowling Green Cottages, Caernarfon, LL55 1BB
- North Road, Caernarfon, LL55 1BD
- North Road, Caernarfon, LL55 1BE
- Maes Y Bwthyn, Caernarfon, LL55 1BF
- Campbell Road, Caernarfon, LL55 1BG
- St. Davids Road, Caernarfon, LL55 1BH
- Rhos Estate, Caernarfon, LL55 1BJ
- Ala Las, Caernarfon, LL55 1BL
- Caernarfon, LL55 1BN
- Hampton Road, Caernarfon, LL55 1BP
- Caernarfon, LL55 1BQ
- Maes Cadnant, Caernarfon, LL55 1BS
- Maesincla Lane, Caernarfon, LL55 1BT
- Maesincla Lane, Caernarfon, LL55 1BU
- Cwrt Pafiliwn, Caernarfon, LL55 1BW
- Eryri Estate, Caernarfon, LL55 1BX
- Maesincla, Caernarfon, LL55 1BY
- Cae Mur, Caernarfon, LL55 1DA
- Caernarfon, LL55 1DB
- Maesincla Lane, Caernarfon, LL55 1DD
- Glan Cadnant, Caernarfon, LL55 1DE
- Maesincla, Caernarfon, LL55 1DG
- Maes Gwynedd, Caernarfon, LL55 1DH
- Llwyn Ceirios, Caernarfon, LL55 1DJ
- Maes Gwynedd, Caernarfon, LL55 1DL
- Maes Hyfryd, Caernarfon, LL55 1DN
- Ffordd Marchlyn, Caernarfon, LL55 1DP
- Ffordd Elidir, Caernarfon, LL55 1DR
- Cae Mur, Caernarfon, LL55 1DS
- Ffordd Cwellyn, Caernarfon, LL55 1DT
- Bethel Road, Caernarfon, LL55 1DU
- Ffordd Glascoed, Caernarfon, LL55 1DW
- Bethel Road, Caernarfon, LL55 1DY
- Pengelli Wyn Estate, Caernarfon, LL55 1EA
- Bethel Road, Caernarfon, LL55 1EB
- Cae Bold, Caernarfon, LL55 1ED
- Cefn Cadnant, Caernarfon, LL55 1EE
- Cae Bold, Caernarfon, LL55 1EF
- Alexandra Terrace, Caernarfon, LL55 1EG
- Rowland Street, Caernarfon, LL55 1EH
- St. Davids Road, Caernarfon, LL55 1EL
- Llys Gwyn, Caernarfon, LL55 1EN
- Sydney Road, Caernarfon, LL55 1ET
- Bron Y Garth, Caernarfon, LL55 1EU
- Penygarth, Caernarfon, LL55 1EY
- Bro Eglwys, Caernarfon, LL55 1GA
- Ael Y Garth, Caernarfon, LL55 1HA
- Bethel Road, Caernarfon, LL55 1HB
- Y Glyn, Caernarfon, LL55 1HD
- Y Glyn, Caernarfon, LL55 1HE
- Y Glyn, Caernarfon, LL55 1HF
- Y Glyn, Caernarfon, LL55 1HG
- Cae Berllan, Caernarfon, LL55 1HH
- Llys Yr Orsedd, Caernarfon, LL55 1HJ
- Y Glyn, Caernarfon, LL55 1HL
- Priestley Road, Caernarfon, LL55 1HP
- England Road North, Caernarfon, LL55 1HS
- Yr Hwylfa, Caernarfon, LL55 1HT
- Campbell Road, Caernarfon, LL55 1HU
- Bethel Road, Caernarfon, LL55 1HW
- England Road South, Caernarfon, LL55 1HY
- Warfield Road, Caernarfon, LL55 1LA
- Llys Meirion, Caernarfon, LL55 1LE
- Ffordd Menai, Caernarfon, LL55 1LF
- Cae Gwyn, Caernarfon, LL55 1LL
- Bangor Road, Caernarfon, LL55 1LN
- Waterloo Port, Caernarfon, LL55 1LP
- Bangor Road, Caernarfon, LL55 1LR
- Bangor Road, Caernarfon, LL55 1LS
- Waterloo Port Road, Caernarfon, LL55 1LW
- Cadnant Road, Caernarfon, LL55 1NA
- Margaret Street, Caernarfon, LL55 1NB
- William Street, Caernarfon, LL55 1ND
- Mary Street, Caernarfon, LL55 1NE
- Canolfan Pen Llyn, Caernarfon, LL55 1NN
- Pool Hill, Caernarfon, LL55 1NP
- South Penrallt, Caernarfon, LL55 1NS
- Pool Side, Caernarfon, LL55 1NW
- Mount Pleasant Square, Caernarfon, LL55 1PA
- Thomas Street, Caernarfon, LL55 1PB
- Twthill West, Caernarfon, LL55 1PE
- Twthill East, Caernarfon, LL55 1PF
- Eleanor Street, Caernarfon, LL55 1PG
- Edward Street, Caernarfon, LL55 1PH
- Hill Street, Caernarfon, LL55 1PL
- Victoria Street, Caernarfon, LL55 1PN
- North Penrallt, Caernarfon, LL55 1PP
- North Penrallt, Caernarfon, LL55 1PR
- Maes Heulog, Caernarfon, LL55 1PS
- Plas Twthill, Caernarfon, LL55 1PT
- Cae Llwybr, Caernarfon, LL55 1PU
- Mountain Street, Caernarfon, LL55 1PW
- Skinner Street, Caernarfon, LL55 1RB
- Y Ddol, Caernarfon, LL55 1RE
- Hole In The Wall Street, Caernarfon, LL55 1RF
- Pepper Lane, Caernarfon, LL55 1RG
- High Street, Caernarfon, LL55 1RH
- High Street, Caernarfon, LL55 1RN
- Palace Street, Caernarfon, LL55 1RR
- Caernarfon, LL55 1RS
- Market Street, Caernarfon, LL55 1RT
- Market Street, Caernarfon, LL55 1RU
- Northgate Street, Caernarfon, LL55 1RW
- Church Lane, Caernarfon, LL55 1SA
- Castle Street, Caernarfon, LL55 1SE
- Caernarfon, LL55 1SG
- Shirehall Street, Caernarfon, LL55 1SH
- Caernarfon, LL55 1SN
- Church Street, Caernarfon, LL55 1SP
- Victoria Dock, Caernarfon, LL55 1SQ
- Victoria Dock, Caernarfon, LL55 1SR
- Caernarfon, LL55 1SS
- Bank Quay, Caernarfon, LL55 1SU
- Church Street, Caernarfon, LL55 1SW
- Crown Street, Caernarfon, LL55 1SY
- Turkey Shore, Caernarfon, LL55 1TA
- Vinegar Hill, Caernarfon, LL55 1TB
- Pretoria Terrace, Caernarfon, LL55 1TD
- Doc Fictoria, Caernarfon, LL55 1TH
- Bangor Road, Caernarfon, LL55 1TP
- Caernarfon, LL55 1TS
- Caernarfon, LL55 1TT
- Caernarfon, LL55 1TU
- Caernarfon, LL55 1TY
- Caernarfon, LL55 1UA
- Caernarfon, LL55 1UB
- Bron Seiont, Caernarfon, LL55 1UD
- Caernarfon, LL55 1UE
- Bethel Road, Caernarfon, LL55 1UH
- Bethel Road, Caernarfon, LL55 1UL
- Caernarfon, LL55 1UN
- Tan Y Buarth Estate, Caernarfon, LL55 1UP
- Caernarfon, LL55 1UR
- Caernarfon, LL55 1UT
- Caernarfon, LL55 1UU
- Caernarfon, LL55 1UW
- Tan Y Ffordd Estate, Caernarfon, LL55 1UY
- Maes Y Ffynnon, Caernarfon, LL55 1WA
- Tan Y Cae, Caernarfon, LL55 1YA
- Caernarfon, LL55 1YB
- Caernarfon, LL55 1YD
- Caernarfon, LL55 1YE
- Caernarfon, LL55 1YF
- Cefn Bach, Caernarfon, LL55 1YG
- Caernarfon, LL55 1YH
- Glan Llyn Terrace, Caernarfon, LL55 1YL
- Corra Linn, Caernarfon, LL55 1YN
- Caernarfon, LL55 1YP
- Caernarfon, LL55 1YS
- Caernarfon, LL55 1YT
- Caernarfon, LL55 1YU
- Caernarfon, LL55 1YW
- Caernarfon, LL55 1YY