SA40 postcode district: Wales

SA40 is a postcode district in Wales, with 107 postcodes in use in 1 sector. It is split between 2 councils: Carmarthenshire (56 postcodes) and Ceredigion (51).

Postcodes in use
107
Sectors
1
Councils
2 councils
Places
None listed

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Every postcode in SA40, by gigabit broadband

Map of every postcode in SA40, by gigabit broadband Of the 107 postcodes in SA40 that ONS places, 33 have no home or business that can get gigabit, 44 have some that can and 30 can all get it. One group of postcodes without gigabit is outlined: 5 postcodes without gigabit. Places named: Llanybydder, Llanwenog. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A475A482 SA40 9AA: gigabit for allSA40 9AD: gigabit for allSA40 9QB: gigabit for allSA40 9QT: gigabit for allSA40 9QZ: gigabit for allSA40 9RG: gigabit for allSA40 9RQ: gigabit for allSA40 9RS: gigabit for allSA40 9RT: gigabit for allSA40 9RU: gigabit for allSA40 9RX: gigabit for allSA40 9SF: gigabit for allSA40 9SH: gigabit for allSA40 9SJ: gigabit for allSA40 9SQ: gigabit for allSA40 9SR: gigabit for allSA40 9SS: gigabit for allSA40 9UD: gigabit for allSA40 9UE: gigabit for allSA40 9UG: gigabit for allSA40 9XL: gigabit for allSA40 9XS: gigabit for allSA40 9XT: gigabit for allSA40 9XX: gigabit for allSA40 9XY: gigabit for allSA40 9YA: gigabit for allSA40 9YW: gigabit for allSA40 9QA: some gigabitSA40 9QD: some gigabitSA40 9QE: some gigabitSA40 9QG: some gigabitSA40 9QJ: some gigabitSA40 9QL: some gigabitSA40 9QN: some gigabitSA40 9QQ: some gigabitSA40 9RA: some gigabitSA40 9RB: some gigabitSA40 9RD: some gigabitSA40 9RE: some gigabitSA40 9RL: some gigabitSA40 9RN: some gigabitSA40 9RP: some gigabitSA40 9RR: some gigabitSA40 9SD: some gigabitSA40 9SG: some gigabitSA40 9SP: some gigabitSA40 9ST: some gigabitSA40 9SX: some gigabitSA40 9SY: some gigabitSA40 9TH: some gigabitSA40 9TJ: some gigabitSA40 9TX: some gigabitSA40 9TY: some gigabitSA40 9TZ: some gigabitSA40 9UA: some gigabitSA40 9UH: some gigabitSA40 9UJ: some gigabitSA40 9UL: some gigabitSA40 9UP: some gigabitSA40 9UT: some gigabitSA40 9UY: some gigabitSA40 9XE: some gigabitSA40 9XH: some gigabitSA40 9XP: some gigabitSA40 9YB: some gigabitSA40 9YD: some gigabitSA40 9YE: some gigabitSA40 9YH: some gigabitSA40 9YJ: some gigabitSA40 9YL: some gigabitSA40 9YN: some gigabitSA40 9AB: no gigabitSA40 9QP: no gigabitSA40 9QR: no gigabitSA40 9QS: no gigabitSA40 9RF: no gigabitSA40 9SA: no gigabitSA40 9SB: no gigabitSA40 9SE: no gigabitSA40 9SU: no gigabitSA40 9TA: no gigabitSA40 9TB: no gigabitSA40 9TD: no gigabitSA40 9TE: no gigabitSA40 9TF: no gigabitSA40 9TG: no gigabitSA40 9TL: no gigabitSA40 9TN: no gigabitSA40 9TP: no gigabitSA40 9TR: no gigabitSA40 9UB: no gigabitSA40 9UR: no gigabitSA40 9UU: no gigabitSA40 9UX: no gigabitSA40 9UZ: no gigabitSA40 9XA: no gigabitSA40 9XB: no gigabitSA40 9XD: no gigabitSA40 9XG: no gigabitSA40 9XJ: no gigabitSA40 9YG: no gigabitSA40 9YP: no gigabitSA40 9YR: no gigabitSA40 9YS: no gigabit LlanybydderLlanwenog 5 postcodes without gigabit, outlined: this goes to SA40 9TE, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in SA40, by gigabit broadband Of the 107 postcodes in SA40 that ONS places, 33 have no home or business that can get gigabit, 44 have some that can and 30 can all get it. One group of postcodes without gigabit is outlined: 5 postcodes without gigabit. Places named: Llanybydder, Llanwenog. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. LlanybydderLlanwenog
  • No home or business can get gigabit: 33
  • Some can get gigabit: 44
  • Every home and business can get gigabit: 30
  • Ofcom gives no figure: 0
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 107 postcodes in SA40 that ONS places, 33 have no home or business that can get gigabit, 44 have some that can and 30 can all get it.

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 520 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. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 52.0842, longitude -4.1755. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

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

SA40 9ABSA40 9QPSA40 9QRSA40 9QSSA40 9RFSA40 9SASA40 9SBSA40 9SESA40 9SUSA40 9TASA40 9TBSA40 9TD

Where the postcodes without gigabit lie together

  • 5 postcodes without gigabit, outlined on the map. SA40 9TE, is the one nearest the middle of them.

What broadband can you get in SA40?

Ofcom reports on 107 of the 107 postcodes in SA40. At 30 of them every home and business can get gigabit broadband, and at 24 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit30 of 107
Postcodes where every home can get superfast56 of 107
Postcodes where some cannot get decent broadband24 of 107

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, Connected Nations, Spring 2026, data for January 2026.

What do homes sell for in SA40?

Homes in SA40 sold for a typical £250,000 in the 12 months to September 2026, across 27 sales, HM Land Registry's figures show. The 12 months before gave £185,000 from 30 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£250,000 typical price, the 12 months to September 2026
£185,000 12 months to September 2025
  • Detached £293,500 16 sales
  • Semi-detached £170,000 7 sales
  • Terraced 3 sales, too few to price
  • Flat or maisonette 1 sale, too few to price

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 October 2026.

Postcodes in SA40

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

SA40 9107 postcodes
UK postcode format explained

Places in SA40

We list no town or village for SA40. A place gets a page here only when enough postcodes are in one: a town or village here is a built-up area named by the Office for National Statistics in England and Wales, or a census locality named by National Records of Scotland. Every SA40 postcode is here, under its sector above.

Who covers SA40

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

  • Caerfyrddin56
  • Ceredigion Preseli51

Police force areas

  • Dyfed-Powys107

Next to SA40

SA39 postcode district SA41 postcode district All SA districts

"Next to" is by number: the districts before and after SA40 in the SA area.

Check a postcode

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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