Postal sector LL65 1
- Bryn Goleu Avenue, Holyhead, LL65 1AA
- Maes Hedd, Holyhead, LL65 1AB
- Bryn Goleu Avenue North, Holyhead, LL65 1AD
- St. Davids Road, Holyhead, LL65 1AE
- Walthew Avenue, Holyhead, LL65 1AF
- Walthew Avenue, Holyhead, LL65 1AG
- Porth Y Felin Road, Holyhead, LL65 1AH
- Trefonnen Estate, Holyhead, LL65 1AJ
- Seabourne Road, Holyhead, LL65 1AL
- Garth Road, Holyhead, LL65 1AN
- Pen Y Bryn Road, Holyhead, LL65 1AP
- Old School Road, Holyhead, LL65 1AQ
- Tan Y Bryn Road, Holyhead, LL65 1AR
- Gwelfor Avenue, Holyhead, LL65 1AS
- Gwelfor Avenue, Holyhead, LL65 1AT
- Holyhead, LL65 1AU
- Min Y Mor Road, Holyhead, LL65 1AW
- Prince Of Wales Road, Holyhead, LL65 1AX
- Holyhead, LL65 1AY
- Bryn Marchog, Holyhead, LL65 1BA
- Holyhead, LL65 1BB
- Holyhead, LL65 1BD
- Holyhead, LL65 1BE
- Tyn Cae, Holyhead, LL65 1BF
- Porth Y Felin Road, Holyhead, LL65 1BG
- Holyhead, LL65 1BH
- Swift Square, Holyhead, LL65 1BJ
- Godrer Twr, Holyhead, LL65 1BQ
- Boston Street, Holyhead, LL65 1BS
- Swift Square, Holyhead, LL65 1BU
- Boston Street, Holyhead, LL65 1BW
- Stad Cae Serri, Holyhead, LL65 1BX
- Stanley Terrace, Holyhead, LL65 1BY
- Clos Y Goleudy, Holyhead, LL65 1BZ
- Newry Street, Holyhead, LL65 1DB
- Stanley Crescent, Holyhead, LL65 1DD
- Stanley Crescent, Holyhead, LL65 1DE
- Marine Square, Holyhead, LL65 1DG
- Old School Road, Holyhead, LL65 1DH
- Holyhead Railway Station, Holyhead, LL65 1DJ
- Hibernia Terrace, Holyhead, LL65 1DL
- Station Approach, Holyhead, LL65 1DQ
- Salt Island, Holyhead, LL65 1DR
- St. Cybi Street, Holyhead, LL65 1DS
- Cybi Place, Holyhead, LL65 1DT
- Lower Park Street, Holyhead, LL65 1DU
- Fair View, Holyhead, LL65 1DW
- Armenia Street, Holyhead, LL65 1DY
- Armenia Terrace, Holyhead, LL65 1EA
- Wesley Terrace, Holyhead, LL65 1EB
- Water Street, Holyhead, LL65 1ED
- Waterside, Holyhead, LL65 1EE
- Cross Street, Holyhead, LL65 1EF
- Cross Street, Holyhead, LL65 1EG
- George Street, Holyhead, LL65 1EH
- North West Street, Holyhead, LL65 1EN
- Breakwater View, Holyhead, LL65 1EP
- Maes Y Mor, Holyhead, LL65 1ER
- Beach Road, Holyhead, LL65 1ES
- Holyhead, LL65 1ET
- Bryn Mor Terrace, Holyhead, LL65 1EU
- Hibernia Row, Holyhead, LL65 1EW
- Devonald Street, Holyhead, LL65 1EY
- Armenia Terrace, Holyhead, LL65 1FA
- Upper Park Street, Holyhead, LL65 1HA
- Park Street, Holyhead, LL65 1HB
- Stanley Street, Holyhead, LL65 1HG
- Stanley Street, Holyhead, LL65 1HH
- Stanley Street, Holyhead, LL65 1HL
- Newry Street, Holyhead, LL65 1HN
- Newry Street, Holyhead, LL65 1HP
- Newry Street, Holyhead, LL65 1HR
- Vicarage Lane, Holyhead, LL65 1HS
- Llwyn Briscoe, Holyhead, LL65 1HT
- Newry Street, Holyhead, LL65 1HU
- Bryn Mor Terrace, Holyhead, LL65 1HW
- Maes Yr Haf, Holyhead, LL65 1HY
- Newry Fields, Holyhead, LL65 1LA
- Newry Fawr, Holyhead, LL65 1LB
- Trehwfa Road, Holyhead, LL65 1LE
- Llaingoch, Holyhead, LL65 1LF
- Brighton Terrace, Holyhead, LL65 1LG
- Waen Fawr, Holyhead, LL65 1LH
- Lon Cae Serri, Holyhead, LL65 1LJ
- Lon Newydd, Holyhead, LL65 1LL
- Stad Ysgol Llaingoch, Holyhead, LL65 1LN
- Maes Y Mynydd, Holyhead, LL65 1LP
- Tre Ambrose, Holyhead, LL65 1LR
- Cae'r Mynydd, Holyhead, LL65 1LS
- Waen Fawr Estate, Holyhead, LL65 1LT
- Mynydd-y-ddraig, Holyhead, LL65 1LX
- Pentre Felin, Holyhead, LL65 1LY
- Parc Felin Dwr, Holyhead, LL65 1LZ
- New Park Close, Holyhead, LL65 1NA
- Trearddur Square, Holyhead, LL65 1NB
- Hill Street, Holyhead, LL65 1ND
- Hill Street, Holyhead, LL65 1NE
- Llainfain, Holyhead, LL65 1NF
- Market Hill, Holyhead, LL65 1NG
- Cambria Street, Holyhead, LL65 1NH
- Rhoslan, Holyhead, LL65 1NJ
- Alderley Terrace, Holyhead, LL65 1NL
- Seiriol Street, Holyhead, LL65 1NN
- Alderley Terrace, Holyhead, LL65 1NP
- Parc Tyddyn Bach, Holyhead, LL65 1NQ
- Maes Cybi, Holyhead, LL65 1NR
- Garreglwyd Road, Holyhead, LL65 1NS
- South Stack Road, Holyhead, LL65 1NT
- South Stack Road, Holyhead, LL65 1NU
- Garreglwyd Park, Holyhead, LL65 1NW
- Parc Tyddyn Bach, Holyhead, LL65 1NZ
- Trehwfa Crescent, Holyhead, LL65 1PA
- Gors Avenue, Holyhead, LL65 1PB
- Sunrise Terrace, Holyhead, LL65 1PD
- Y Gors, Holyhead, LL65 1PE
- Brighton Terrace, Holyhead, LL65 1PF
- Ponthwfa Terrace, Holyhead, LL65 1PG
- New Park Road, Holyhead, LL65 1PH
- Gwel Y Mynydd, Holyhead, LL65 1PJ
- Porth Y Felin Road, Holyhead, LL65 1PL
- Maes Y Dref, Holyhead, LL65 1PN
- Queens Park, Holyhead, LL65 1PP
- South Stack Road, Holyhead, LL65 1PQ
- Queens Park, Holyhead, LL65 1PR
- Queens Park, Holyhead, LL65 1PS
- Queens Park, Holyhead, LL65 1PT
- Queens Park Close, Holyhead, LL65 1PU
- Walthew Lane, Holyhead, LL65 1PW
- Gors Avenue, Holyhead, LL65 1PX
- Queens Park Close, Holyhead, LL65 1PY
- Gors Avenue, Holyhead, LL65 1PZ
- Llain Westbury, Holyhead, LL65 1QA
- Garreglwyd Park, Holyhead, LL65 1QB
- Ucheldre Avenue, Holyhead, LL65 1RA
- Queens Park Court, Holyhead, LL65 1RB
- St. Seiriols Close, Holyhead, LL65 1RD
- Llys Mair, Holyhead, LL65 1RE
- Ty'n Parc, Holyhead, LL65 1RF
- Penucheldre, Holyhead, LL65 1RJ
- William Street, Holyhead, LL65 1RN
- Thomas Street, Holyhead, LL65 1RR
- Thomas Street, Holyhead, LL65 1RS
- Garreg Domas, Holyhead, LL65 1RT
- Ucheldre Avenue, Holyhead, LL65 1RU
- Tower Gardens, Holyhead, LL65 1RW
- Edmund Street, Holyhead, LL65 1SA
- Edmund Street, Holyhead, LL65 1SB
- Roberts Street, Holyhead, LL65 1SD
- Baptist Street, Holyhead, LL65 1SE
- Baptist Street, Holyhead, LL65 1SF
- Upper Baptist Street, Holyhead, LL65 1SG
- Upper Baptist Street, Holyhead, LL65 1SH
- Felin Wen, Holyhead, LL65 1SJ
- Upper Baptist Street, Holyhead, LL65 1SL
- Mount Pleasant, Holyhead, LL65 1SN
- High Terrace, Holyhead, LL65 1SP
- Maes Meilw, Holyhead, LL65 1SR
- Maes Meilw, Holyhead, LL65 1SS
- Bryn Gwyn Road, Holyhead, LL65 1ST
- Maes Meilw, Holyhead, LL65 1SU
- Millbank Terrace, Holyhead, LL65 1SY
- Hawthorne Terrace, Holyhead, LL65 1TA
- Ffordd Wynfa, Holyhead, LL65 1TB
- Pump Street, Holyhead, LL65 1TD
- Mill Bank, Holyhead, LL65 1TE
- Rock Street, Holyhead, LL65 1TF
- Maes Y Felin, Holyhead, LL65 1TG
- Garreglwyd Road, Holyhead, LL65 1TH
- Vulcan Street, Holyhead, LL65 1TL
- Vulcan Street, Holyhead, LL65 1TN
- Longford Road, Holyhead, LL65 1TP
- Longford Road, Holyhead, LL65 1TR
- Longford Road, Holyhead, LL65 1TS
- Longford Road, Holyhead, LL65 1TT
- Longford Road, Holyhead, LL65 1TU
- Longford Terrace, Holyhead, LL65 1TY
- Holyhead, LL65 1UB
- Victoria Road, Holyhead, LL65 1UD
- Market Square, Holyhead, LL65 1UF
- Market Street, Holyhead, LL65 1UL
- Market Street, Holyhead, LL65 1UN
- Holyhead, LL65 1UR
- Victoria Terrace, Holyhead, LL65 1UT
- Market Street, Holyhead, LL65 1UW
- Newry Beach, Holyhead, LL65 1YA
- Holyhead, LL65 1YB
- Newry Beach, Holyhead, LL65 1YD
- Holyhead, LL65 1YF
- Holyhead, LL65 1YG
- Holyhead, LL65 1YH
- South Stack Road, Holyhead, LL65 1YL
- South Stack Road, Holyhead, LL65 1YN
- Holyhead, LL65 1YP
- Holyhead, LL65 1YR
- Holyhead, LL65 1YS
- Holyhead, LL65 1YT
- Hirfron Estate, Holyhead, LL65 1YU
- Holyhead, LL65 1YW