SY23 postcode district: Aberystwyth and around

SY23 is a postcode district in Wales, with 985 postcodes in use in 6 sectors. It has postcodes in Aberystwyth and Llanbadarn Fawr. It is split between 2 councils: Ceredigion (984 postcodes) and Powys (1).

Postcodes in use
985
Sectors
6
Councils
2 councils
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in SY23, by gigabit broadband

Map of every postcode in SY23, by gigabit broadband Of the 985 postcodes in SY23 that ONS places, 212 have no home or business that can get gigabit, 253 have some that can, 491 can all get it and 29 have no Ofcom figure. 6 groups of postcodes without gigabit are outlined: 48 postcodes without gigabit; 16 postcodes without gigabit; 7 postcodes without gigabit; 7 postcodes without gigabit; 6 postcodes without gigabit; 5 postcodes without gigabit. Places named: Aberystwyth, Llanbadarn Fawr. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. SY23 1BU: gigabit for allSY23 1DA: gigabit for allSY23 1DZ: gigabit for allSY23 1HD: gigabit for allSY23 1HH: gigabit for allSY23 1HL: gigabit for allSY23 1JX: gigabit for allSY23 1JY: gigabit for allSY23 1QP: gigabit for allSY23 1QY: gigabit for allSY23 1RA: gigabit for allSY23 1RJ: gigabit for allSY23 2HD: gigabit for allSY23 2HX: gigabit for allSY23 2HY: gigabit for allSY23 3AT: gigabit for allSY23 3AW: gigabit for allSY23 3AX: gigabit for allSY23 3AY: gigabit for allSY23 3AZ: gigabit for allSY23 3BE: gigabit for allSY23 3BH: gigabit for allSY23 3BL: gigabit for allSY23 3BN: gigabit for allSY23 3BT: gigabit for allSY23 3BW: gigabit for allSY23 3DN: gigabit for allSY23 3DR: gigabit for allSY23 3EA: gigabit for allSY23 3ED: gigabit for allSY23 3EE: gigabit for allSY23 3EJ: gigabit for allSY23 3GW: gigabit for allSY23 3GZ: gigabit for allSY23 3HA: gigabit for allSY23 3HF: gigabit for allSY23 3HZ: gigabit for allSY23 3JB: gigabit for allSY23 3JN: gigabit for allSY23 3JU: gigabit for allSY23 3NF: gigabit for allSY23 3NT: gigabit for allSY23 3NU: gigabit for allSY23 3PL: gigabit for allSY23 3PP: gigabit for allSY23 3PR: gigabit for allSY23 3QR: gigabit for allSY23 3RS: gigabit for allSY23 3RW: gigabit for allSY23 3RY: gigabit for allSY23 3SR: gigabit for allSY23 3SS: gigabit for allSY23 3SX: gigabit for allSY23 3UA: gigabit for allSY23 4AG: gigabit for allSY23 4AH: gigabit for allSY23 4AP: gigabit for allSY23 4AX: gigabit for allSY23 4BA: gigabit for allSY23 4BB: gigabit for allSY23 4BE: gigabit for allSY23 4BF: gigabit for allSY23 4BH: gigabit for allSY23 4BJ: gigabit for allSY23 4BL: gigabit for allSY23 4BN: gigabit for allSY23 4BP: gigabit for allSY23 4BY: gigabit for allSY23 4BZ: gigabit for allSY23 4DB: gigabit for allSY23 4DD: gigabit for allSY23 4DE: gigabit for allSY23 4DF: gigabit for allSY23 4DJ: gigabit for allSY23 4DL: gigabit for allSY23 4DN: gigabit for allSY23 4DY: gigabit for allSY23 4DZ: gigabit for allSY23 4EB: gigabit for allSY23 4EG: gigabit for allSY23 4EJ: gigabit for allSY23 4ER: gigabit for allSY23 4ET: gigabit for allSY23 4EU: gigabit for allSY23 4EY: gigabit for allSY23 4HH: gigabit for allSY23 4HJ: gigabit for allSY23 4HQ: gigabit for allSY23 4JL: gigabit for allSY23 4JQ: gigabit for allSY23 4JT: gigabit for allSY23 4JW: gigabit for allSY23 4JX: gigabit for allSY23 4JY: gigabit for allSY23 4LE: gigabit for allSY23 4LF: gigabit for allSY23 4LJ: gigabit for allSY23 4LP: gigabit for allSY23 4LR: gigabit for allSY23 4ND: gigabit for allSY23 4NG: gigabit for allSY23 4NL: gigabit for allSY23 4NP: gigabit for allSY23 4NS: gigabit for allSY23 4NW: gigabit for allSY23 4PL: gigabit for allSY23 4PP: gigabit for allSY23 4PZ: gigabit for allSY23 4QF: gigabit for allSY23 4QG: gigabit for allSY23 4QH: gigabit for allSY23 4QJ: gigabit for allSY23 4QL: gigabit for allSY23 4QQ: gigabit for allSY23 4QW: gigabit for allSY23 4QZ: gigabit for allSY23 4RD: gigabit for allSY23 4RE: gigabit for allSY23 4RG: gigabit for allSY23 4RS: gigabit for allSY23 4SB: gigabit for allSY23 4SD: gigabit for allSY23 4SN: gigabit for allSY23 4TP: gigabit for allSY23 4TR: gigabit for allSY23 4UN: gigabit for allSY23 5AL: gigabit for allSY23 5AQ: gigabit for allSY23 5AS: gigabit for allSY23 5AX: gigabit for allSY23 5BJ: gigabit for allSY23 5DA: gigabit for allSY23 5DN: gigabit for allSY23 5DP: gigabit for allSY23 5DS: gigabit for allSY23 5EF: gigabit for allSY23 5EG: gigabit for allSY23 5EQ: gigabit for allSY23 5JB: gigabit for allSY23 5JP: gigabit for allSY23 5JQ: gigabit for allSY23 5JW: gigabit for allSY23 5LG: gigabit for allSY23 5LH: gigabit for allSY23 5LL: gigabit for allSY23 5LN: gigabit for allSY23 5LQ: gigabit for allSY23 5LS: gigabit for allSY23 5LX: gigabit for allSY23 5NF: gigabit for allSY23 5NH: gigabit for allSY23 5PA: gigabit for allSY23 3GX: gigabit for allSY23 1EE: some gigabitSY23 2DN: some gigabitSY23 3AE: some gigabitSY23 3AF: some gigabitSY23 3AG: some gigabitSY23 3AH: some gigabitSY23 3AP: some gigabitSY23 3AU: some gigabitSY23 3BD: some gigabitSY23 3BG: some gigabitSY23 3BJ: some gigabitSY23 3DG: some gigabitSY23 3DH: some gigabitSY23 3DL: some gigabitSY23 3DP: some gigabitSY23 3DT: some gigabitSY23 3DW: some gigabitSY23 3EF: some gigabitSY23 3EG: some gigabitSY23 3EH: some gigabitSY23 3EQ: some gigabitSY23 3ER: some gigabitSY23 3ES: some gigabitSY23 3EY: some gigabitSY23 3HB: some gigabitSY23 3HP: some gigabitSY23 3HU: some gigabitSY23 3HX: some gigabitSY23 3HY: some gigabitSY23 3JA: some gigabitSY23 3JD: some gigabitSY23 3JF: some gigabitSY23 3JL: some gigabitSY23 3JW: some gigabitSY23 3JX: some gigabitSY23 3LL: some gigabitSY23 3LN: some gigabitSY23 3LP: some gigabitSY23 3LR: some gigabitSY23 3LT: some gigabitSY23 3LZ: some gigabitSY23 3NA: some gigabitSY23 3NB: some gigabitSY23 3ND: some gigabitSY23 3NE: some gigabitSY23 3NJ: some gigabitSY23 3PB: some gigabitSY23 3PD: some gigabitSY23 3QU: some gigabitSY23 3RA: some gigabitSY23 3SE: some gigabitSY23 4AB: some gigabitSY23 4AD: some gigabitSY23 4AE: some gigabitSY23 4AF: some gigabitSY23 4AR: some gigabitSY23 4AY: some gigabitSY23 4AZ: some gigabitSY23 4BD: some gigabitSY23 4BG: some gigabitSY23 4DG: some gigabitSY23 4DH: some gigabitSY23 4DW: some gigabitSY23 4EA: some gigabitSY23 4ED: some gigabitSY23 4EE: some gigabitSY23 4EL: some gigabitSY23 4ES: some gigabitSY23 4EX: some gigabitSY23 4EZ: some gigabitSY23 4HA: some gigabitSY23 4HB: some gigabitSY23 4HD: some gigabitSY23 4HF: some gigabitSY23 4HG: some gigabitSY23 4JA: some gigabitSY23 4JD: some gigabitSY23 4JG: some gigabitSY23 4JH: some gigabitSY23 4JN: some gigabitSY23 4JU: some gigabitSY23 4JZ: some gigabitSY23 4LA: some gigabitSY23 4LD: some gigabitSY23 4LG: some gigabitSY23 4LL: some gigabitSY23 4LT: some gigabitSY23 4LU: some gigabitSY23 4LX: some gigabitSY23 4LY: some gigabitSY23 4LZ: some gigabitSY23 4NA: some gigabitSY23 4NB: some gigabitSY23 4NE: some gigabitSY23 4NN: some gigabitSY23 4NR: some gigabitSY23 4NX: some gigabitSY23 4PF: some gigabitSY23 4PG: some gigabitSY23 4PH: some gigabitSY23 4PN: some gigabitSY23 4PY: some gigabitSY23 4QE: some gigabitSY23 4QN: some gigabitSY23 4QT: some gigabitSY23 4QU: some gigabitSY23 4QX: some gigabitSY23 4RF: some gigabitSY23 4RH: some gigabitSY23 4RQ: some gigabitSY23 4RR: some gigabitSY23 4SE: some gigabitSY23 4SL: some gigabitSY23 4SP: some gigabitSY23 4SR: some gigabitSY23 4SS: some gigabitSY23 4SW: some gigabitSY23 4TD: some gigabitSY23 4TS: some gigabitSY23 4TT: some gigabitSY23 4TW: some gigabitSY23 4UA: some gigabitSY23 4UJ: some gigabitSY23 5AA: some gigabitSY23 5AB: some gigabitSY23 5AD: some gigabitSY23 5AG: some gigabitSY23 5AH: some gigabitSY23 5AN: some gigabitSY23 5AR: some gigabitSY23 5AW: some gigabitSY23 5AY: some gigabitSY23 5BH: some gigabitSY23 5BT: some gigabitSY23 5BU: some gigabitSY23 5BY: some gigabitSY23 5BZ: some gigabitSY23 5DH: some gigabitSY23 5DW: some gigabitSY23 5ED: some gigabitSY23 5EE: some gigabitSY23 5EH: some gigabitSY23 5EJ: some gigabitSY23 5EL: some gigabitSY23 5JG: some gigabitSY23 5JH: some gigabitSY23 5JR: some gigabitSY23 5LJ: some gigabitSY23 5LR: some gigabitSY23 5LW: some gigabitSY23 5LY: some gigabitSY23 5LZ: some gigabitSY23 5NA: some gigabitSY23 5NB: some gigabitSY23 5ND: some gigabitSY23 5NE: some gigabitSY23 5NG: some gigabitSY23 5NJ: some gigabitSY23 5NL: some gigabitSY23 5NN: some gigabitSY23 5NP: some gigabitSY23 5NR: some gigabitSY23 5NS: some gigabitSY23 5PD: some gigabitSY23 5PE: some gigabitSY23 1RZ: some gigabitSY23 1BJ: some gigabitSY23 1SH: some gigabitSY23 3HJ: some gigabitSY23 3DF: some gigabitSY23 3FA: some gigabitSY23 4TA: some gigabitSY23 4EF: some gigabitSY23 4BU: some gigabitSY23 4DA: some gigabitSY23 4HZ: some gigabitSY23 4LQ: some gigabitSY23 4PA: some gigabitSY23 4RT: some gigabitSY23 5PB: some gigabitSY23 1AB: no gigabitSY23 1DE: no gigabitSY23 1PD: no gigabitSY23 1SJ: no gigabitSY23 2AL: no gigabitSY23 2BH: no gigabitSY23 2DL: no gigabitSY23 3AA: no gigabitSY23 3AB: no gigabitSY23 3AD: no gigabitSY23 3AJ: no gigabitSY23 3AL: no gigabitSY23 3AN: no gigabitSY23 3ET: no gigabitSY23 3EU: no gigabitSY23 3EX: no gigabitSY23 3EZ: no gigabitSY23 3FF: no gigabitSY23 3FP: no gigabitSY23 3FQ: no gigabitSY23 3FW: no gigabitSY23 3HL: no gigabitSY23 3HN: no gigabitSY23 3HR: no gigabitSY23 3HS: no gigabitSY23 3HT: no gigabitSY23 3JE: no gigabitSY23 3JR: no gigabitSY23 3JS: no gigabitSY23 3JT: no gigabitSY23 3JY: no gigabitSY23 3JZ: no gigabitSY23 3LB: no gigabitSY23 3LD: no gigabitSY23 3LE: no gigabitSY23 3LF: no gigabitSY23 3LS: no gigabitSY23 3NL: no gigabitSY23 3NN: no gigabitSY23 3NP: no gigabitSY23 3NS: no gigabitSY23 3NW: no gigabitSY23 3PE: no gigabitSY23 3PF: no gigabitSY23 3PG: no gigabitSY23 3PQ: no gigabitSY23 3RN: no gigabitSY23 3TL: no gigabitSY23 4AQ: no gigabitSY23 4AS: no gigabitSY23 4AT: no gigabitSY23 4AU: no gigabitSY23 4DP: no gigabitSY23 4EH: no gigabitSY23 4EQ: no gigabitSY23 4HE: no gigabitSY23 4HS: no gigabitSY23 4HU: no gigabitSY23 4HX: no gigabitSY23 4HY: no gigabitSY23 4JB: no gigabitSY23 4JE: no gigabitSY23 4JF: no gigabitSY23 4JJ: no gigabitSY23 4NF: no gigabitSY23 4NY: no gigabitSY23 4PE: no gigabitSY23 4PJ: no gigabitSY23 4PQ: no gigabitSY23 4PR: no gigabitSY23 4QA: no gigabitSY23 4QB: no gigabitSY23 4RB: no gigabitSY23 4RJ: no gigabitSY23 4RL: no gigabitSY23 4RP: no gigabitSY23 4RW: no gigabitSY23 4SF: no gigabitSY23 4SG: no gigabitSY23 4SH: no gigabitSY23 4SQ: no gigabitSY23 4ST: no gigabitSY23 4TE: no gigabitSY23 4TF: no gigabitSY23 4TG: no gigabitSY23 4TH: no gigabitSY23 4TJ: no gigabitSY23 4TL: no gigabitSY23 4TN: no gigabitSY23 5AE: no gigabitSY23 5AF: no gigabitSY23 5AP: no gigabitSY23 5BA: no gigabitSY23 5BB: no gigabitSY23 5BD: no gigabitSY23 5BE: no gigabitSY23 5BQ: no gigabitSY23 5DJ: no gigabitSY23 5EA: no gigabitSY23 5EB: no gigabitSY23 5HR: no gigabitSY23 5JL: no gigabitSY23 5JN: no gigabitSY23 5JY: no gigabitSY23 5JZ: no gigabitSY23 5LA: no gigabitSY23 5LB: no gigabitSY23 5LD: no gigabitSY23 5LE: no gigabitSY23 5LF: no gigabitSY23 5NQ: no gigabitSY23 5NW: no gigabitSY23 5PF: no gigabitSY23 5PG: no gigabitSY23 1LB: no gigabitSY23 1DF: no gigabitSY23 1DB: no gigabitSY23 1ER: no gigabitSY23 2AD: no gigabitSY23 1LF: no gigabitSY23 1NL: no gigabitSY23 1TH: no gigabitSY23 1SS: no gigabitSY23 2DJ: no gigabitSY23 2BY: no gigabitSY23 3DB: no gigabitSY23 3FZ: no gigabitSY23 3FJ: no gigabitSY23 3GJ: no gigabitSY23 3TB: no gigabitSY23 4PU: no gigabitSY23 5BL: no gigabitSY23 5HP: no gigabitSY23 5HF: no gigabitSY23 5HZ: no gigabit AberystwythLlanbadarn Fawr 48 postcodes without gigabit, outlined: this goes to SY23 2DT, the one nearest the middle of them48 postcodes without gigabit16 postcodes without gigabit, outlined: this goes to SY23 3DY, the one nearest the middle of them16 postcodes without gigabit7 postcodes without gigabit, outlined: this goes to SY23 4QP, the one nearest the middle of them7 postcodes without gigabit7 postcodes without gigabit, outlined: this goes to SY23 5HY, the one nearest the middle of them7 postcodes without gigabit6 postcodes without gigabit, outlined: this goes to SY23 1SN, the one nearest the middle of them6 postcodes without gigabit Map of every postcode in SY23, by gigabit broadband Of the 985 postcodes in SY23 that ONS places, 212 have no home or business that can get gigabit, 253 have some that can, 491 can all get it and 29 have no Ofcom figure. 6 groups of postcodes without gigabit are outlined: 48 postcodes without gigabit; 16 postcodes without gigabit; 7 postcodes without gigabit; 7 postcodes without gigabit; 6 postcodes without gigabit; 5 postcodes without gigabit. Places named: Aberystwyth, Llanbadarn Fawr. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 10 km. AberystwythLlanbadarn Fawr 7 postcodes without gigabit, outlined: this goes to SY23 5HY, the one nearest the middle of them7 postcodes without gigabit
  • No home or business can get gigabit: 212
  • Some can get gigabit: 253
  • Every home and business can get gigabit: 491
  • Ofcom gives no figure: 29
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 985 postcodes in SY23 that ONS places, 212 have no home or business that can get gigabit, 253 have some that can, 491 can all get it and 29 have no Ofcom figure.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 210 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 52.3792, longitude -4.0520. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; gigabit: Ofcom, Connected Nations, Spring 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Postcodes without gigabit

212 postcodes here have no gigabit. These are the 12 first in postcode order.

SY23 1ABSY23 1DBSY23 1DDSY23 1DESY23 1DFSY23 1DLSY23 1ERSY23 1JNSY23 1LBSY23 1LFSY23 1NGSY23 1NL

Where the postcodes without gigabit lie together

  • 48 postcodes without gigabit, outlined on the map. SY23 2DT, is the one nearest the middle of them.
  • 16 postcodes without gigabit, outlined on the map. SY23 3DY, is the one nearest the middle of them.
  • 7 postcodes without gigabit, outlined on the map. SY23 4QP, is the one nearest the middle of them.
  • 7 postcodes without gigabit, outlined on the map. SY23 5HY, is the one nearest the middle of them.
  • 6 postcodes without gigabit, outlined on the map. SY23 1SN, is the one nearest the middle of them.
  • 5 postcodes without gigabit, outlined on the map. SY23 3FR, is the one nearest the middle of them.

What broadband can you get in SY23?

Ofcom reports on 956 of the 985 postcodes in SY23. At 491 of them every home and business can get gigabit broadband, and at 73 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit491 of 956
Postcodes where every home can get superfast688 of 956
Postcodes where some cannot get decent broadband73 of 956

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

What do homes sell for in SY23?

Homes in SY23 sold for a typical £235,000 in the 12 months to August 2026, across 239 sales, up 5.4% on the 12 months before, HM Land Registry's figures show.

£235,000 typical price, the 12 months to August 2026
£223,000 12 months to August 2025
▲ up 5.4% on the 12 months before
  • Detached £309,950 97 sales
  • Semi-detached £217,500 62 sales
  • Terraced £188,500 54 sales
  • Flat or maisonette £172,000 26 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in SY23

Pick a sector, then a postcode. A sector is the district plus the next digit.

SY23 1190 postcodesSY23 2107 postcodesSY23 3303 postcodesSY23 4237 postcodesSY23 5140 postcodesSY23 98 postcodes
UK postcode format explained

Places in SY23

Towns and villages with postcodes in SY23, and how many each has here.

Aberystwyth postcodes,404Llanbadarn Fawr postcodes,83

Who covers SY23

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Ceredigion Preseli984
  • Brecon, Radnor and Cwm Tawe1

Police force areas

  • Dyfed-Powys985

Next to SY23

SY22 postcode district SY24 postcode district All SY districts Aberystwyth postcodes

"Next to" is by number: the districts before and after SY23 in the SY area.

Check a postcode

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