Postal sector SY23 1
- Riverside Terrace, Aberystwyth, SY23 1AB
- Y Lanfa, Aberystwyth, SY23 1AS
- Glanhafan, Aberystwyth, SY23 1AT
- Aberystwyth, SY23 1BA
- Green Gardens, Aberystwyth, SY23 1BB
- Aberystwyth, SY23 1BD
- Aberystwyth, SY23 1BE
- Harbour Crescent, Aberystwyth, SY23 1BG
- Pen-yr-angor, Aberystwyth, SY23 1BH
- Pen-yr-angor, Aberystwyth, SY23 1BJ
- Yr Odyn, Aberystwyth, SY23 1BL
- Cwrt Yr Angor, Aberystwyth, SY23 1BN
- Penparcau Road, Aberystwyth, SY23 1BP
- Felin Y Mor Road, Aberystwyth, SY23 1BS
- Dinas Terrace, Aberystwyth, SY23 1BT
- Felin Y Mor, Aberystwyth, SY23 1BU
- Beehive Terrace, Aberystwyth, SY23 1BW
- Spring Gardens, Aberystwyth, SY23 1BX
- Glanrafon Terrace, Aberystwyth, SY23 1BY
- Felin Y Mor Road, Aberystwyth, SY23 1BZ
- Ropewalk Close, Aberystwyth, SY23 1DA
- Gerddi Rheidol, Aberystwyth, SY23 1DB
- Plas Yr Afon, Aberystwyth, SY23 1DD
- Great Darkgate Street, Aberystwyth, SY23 1DE
- Gerddi Ffynnon, Aberystwyth, SY23 1DF
- Market Street, Aberystwyth, SY23 1DL
- Castle Street, Aberystwyth, SY23 1DT
- St. James's Square, Aberystwyth, SY23 1DU
- Great Darkgate Street, Aberystwyth, SY23 1DW
- Princess Street, Aberystwyth, SY23 1DX
- St. Michaels Place, Aberystwyth, SY23 1DY
- Sea View Place, Aberystwyth, SY23 1DZ
- Great Darkgate Street, Aberystwyth, SY23 1EA
- William Street, Aberystwyth, SY23 1EB
- Bryn Ardwyn, Aberystwyth, SY23 1EE
- Bryn Ardwyn, Aberystwyth, SY23 1EF
- Epworth Terrace, Aberystwyth, SY23 1EH
- Llanbadarn Road, Aberystwyth, SY23 1EJ
- Llanbadarn Road, Aberystwyth, SY23 1EL
- Caergog Terrace, Aberystwyth, SY23 1EP
- Llanbadarn Road, Aberystwyth, SY23 1EQ
- Caradoc Road, Aberystwyth, SY23 1ER
- Caradoc Road, Aberystwyth, SY23 1ES
- Caergog, Aberystwyth, SY23 1ET
- St. Davids Road, Aberystwyth, SY23 1EU
- Iorwerth Avenue, Aberystwyth, SY23 1EW
- Llanbadarn Road, Aberystwyth, SY23 1EY
- Llanbadarn Road, Aberystwyth, SY23 1EZ
- Llanbadarn Road, Aberystwyth, SY23 1HA
- Llanbadarn Road, Aberystwyth, SY23 1HB
- Aberystwyth, SY23 1HD
- St. Georges Terrace, Aberystwyth, SY23 1HE
- Broadway, Aberystwyth, SY23 1HF
- Llanbadarn Road, Aberystwyth, SY23 1HG
- Cathedral View, Aberystwyth, SY23 1HH
- Plas Avenue, Aberystwyth, SY23 1HJ
- Plascrug, Aberystwyth, SY23 1HL
- Clos Padarn, Aberystwyth, SY23 1HN
- Kings Crescent, Aberystwyth, SY23 1HQ
- Chalybeate Street, Aberystwyth, SY23 1HS
- Chalybeate Street, Aberystwyth, SY23 1HX
- Mill Street, Aberystwyth, SY23 1HZ
- St. Davids Place, Aberystwyth, SY23 1JA
- Mill Street, Aberystwyth, SY23 1JB
- Mill Street, Aberystwyth, SY23 1JE
- South Road, Aberystwyth, SY23 1JF
- High Street, Aberystwyth, SY23 1JG
- Vulcan Street, Aberystwyth, SY23 1JH
- Prospect Street, Aberystwyth, SY23 1JJ
- South Road, Aberystwyth, SY23 1JL
- South Road, Aberystwyth, SY23 1JN
- Penmaesglas Road, Aberystwyth, SY23 1JP
- High Street, Aberystwyth, SY23 1JQ
- Custom House Street, Aberystwyth, SY23 1JR
- South Road, Aberystwyth, SY23 1JS
- South Road, Aberystwyth, SY23 1JT
- Rheidol Terrace, Aberystwyth, SY23 1JU
- South Road, Aberystwyth, SY23 1JW
- South Marine Terrace, Aberystwyth, SY23 1JX
- Stanley Road, Aberystwyth, SY23 1LB
- Alexandra Road, Aberystwyth, SY23 1LD
- Alexandra Road, Aberystwyth, SY23 1LE
- Alexandra Road, Aberystwyth, SY23 1LF
- Alexandra Road, Aberystwyth, SY23 1LG
- Alexandra Road, Aberystwyth, SY23 1LH
- Rheidol Retail Park, Aberystwyth, SY23 1LL
- Alexandra Road, Aberystwyth, SY23 1LN
- Elm Tree Avenue, Aberystwyth, SY23 1LP
- Buarth Road, Aberystwyth, SY23 1LR
- Stanley Road, Aberystwyth, SY23 1LS
- Trinity Place, Aberystwyth, SY23 1LT
- Trinity Road, Aberystwyth, SY23 1LU
- Stanley Terrace, Aberystwyth, SY23 1LW
- Pound Place, Aberystwyth, SY23 1LX
- Edgehill Road, Aberystwyth, SY23 1LZ
- Banadl Road, Aberystwyth, SY23 1NA
- Buarth Road, Aberystwyth, SY23 1NB
- Buarth Road, Aberystwyth, SY23 1ND
- Coed Y Buarth, Aberystwyth, SY23 1NE
- Cambrian Street, Aberystwyth, SY23 1NL
- Terrace Road, Aberystwyth, SY23 1NP
- Cambrian Place, Aberystwyth, SY23 1NT
- Union Street, Aberystwyth, SY23 1NX
- Terrace Road, Aberystwyth, SY23 1NY
- Cambrian Street, Aberystwyth, SY23 1NZ
- Brewer Street, Aberystwyth, SY23 1PA
- Park Avenue, Aberystwyth, SY23 1PB
- Boulevard St. Brieuc, Aberystwyth, SY23 1PD
- Park Avenue, Aberystwyth, SY23 1PF
- Park Avenue, Aberystwyth, SY23 1PG
- Greenfield Street, Aberystwyth, SY23 1PJ
- Maesyrafon, Aberystwyth, SY23 1PL
- Riverside Terrace, Aberystwyth, SY23 1PN
- Riverside Terrace, Aberystwyth, SY23 1PP
- Queen Street, Aberystwyth, SY23 1PS
- Alexandra Road, Aberystwyth, SY23 1PT
- Queen Street, Aberystwyth, SY23 1PU
- Bridge Street, Aberystwyth, SY23 1PY
- Bridge Street, Aberystwyth, SY23 1PZ
- Bridge Street, Aberystwyth, SY23 1QB
- Bridge Street, Aberystwyth, SY23 1QD
- Grays Inn Road, Aberystwyth, SY23 1QE
- William Street, Aberystwyth, SY23 1QF
- George Street, Aberystwyth, SY23 1QG
- Grays Inn Road, Aberystwyth, SY23 1QH
- Penparcau Road, Aberystwyth, SY23 1QP
- Powell Street, Aberystwyth, SY23 1QQ
- Plashelyg Avenue, Aberystwyth, SY23 1QR
- Plas Helyg, Aberystwyth, SY23 1QS
- Fifth Avenue, Aberystwyth, SY23 1QT
- Heol Isaf, Aberystwyth, SY23 1QU
- Penrheidol, Aberystwyth, SY23 1QW
- Penparcau Road, Aberystwyth, SY23 1QX
- First Avenue, Aberystwyth, SY23 1QY
- Second Avenue, Aberystwyth, SY23 1QZ
- Fourth Avenue, Aberystwyth, SY23 1RA
- Maesyffynnon, Aberystwyth, SY23 1RB
- Second Avenue, Aberystwyth, SY23 1RD
- Fifth Avenue, Aberystwyth, SY23 1RE
- Third Avenue, Aberystwyth, SY23 1RF
- Min Y Ddol, Aberystwyth, SY23 1RG
- Ger Y Ddol, Aberystwyth, SY23 1RH
- Piercefield Lane, Aberystwyth, SY23 1RJ
- Piercefield Lane, Aberystwyth, SY23 1RL
- Rheidol View, Aberystwyth, SY23 1RN
- Bryn Place, Aberystwyth, SY23 1RP
- Powell Street, Aberystwyth, SY23 1RQ
- Aberystwyth, SY23 1RR
- Side Street, Aberystwyth, SY23 1RS
- Tycam, Aberystwyth, SY23 1RT
- Aberystwyth, SY23 1RU
- Rheidol Road, Aberystwyth, SY23 1RW
- Piercefield Lane, Aberystwyth, SY23 1RX
- Aberystwyth, SY23 1RY
- Aberystwyth, SY23 1RZ
- Aberystwyth, SY23 1SA
- Aberystwyth, SY23 1SD
- Aberystwyth, SY23 1SE
- Antaron Avenue, Aberystwyth, SY23 1SF
- Tanyfron Lane, Aberystwyth, SY23 1SG
- Aberystwyth, SY23 1SH
- Aberystwyth, SY23 1SJ
- Bryn Ysgol, Aberystwyth, SY23 1SL
- Penybont, Aberystwyth, SY23 1SN
- Tremafon, Aberystwyth, SY23 1SP
- Llwyn Yr Eos, Aberystwyth, SY23 1SQ
- Rhydybont, Aberystwyth, SY23 1SR
- Brynystwyth, Aberystwyth, SY23 1SS
- Gwel Rheidol, Aberystwyth, SY23 1SW
- Penparcau Road, Aberystwyth, SY23 1SY
- Maes Maelor, Aberystwyth, SY23 1SZ
- Maesheli, Aberystwyth, SY23 1TA
- Maesheli, Aberystwyth, SY23 1TB
- Maesheli, Aberystwyth, SY23 1TD
- Heol Y Garth, Aberystwyth, SY23 1TE
- Heol Nanteos, Aberystwyth, SY23 1TF
- Heol Y Wern, Aberystwyth, SY23 1TG
- Penparcau Road, Aberystwyth, SY23 1TH
- Heol Ystrad, Aberystwyth, SY23 1TQ