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: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources
Every postcode in SA40, and which are new since 2020
- New since 2020: 1
- In use before 2020: 106
Of the 107 postcodes in SA40 that ONS places, 1 are new since 2020 and 106 were in use before 2020.
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. New since 2020 means it came into use in January 2020 or later. 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
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; 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
The newest postcode
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).
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 checkerSource: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it
What do homes sell for in SA40?
Homes in SA40 sold for a typical £220,000 in the 12 months to August 2026, across 27 sales, up 18.9% on the 12 months before, HM Land Registry's figures show.
- Detached £285,000 15 sales
- Semi-detached £175,000 7 sales
- Terraced 4 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 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 SA40
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces 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
"Next to" is by number: the districts before and after SA40 in the SA area.
Check a postcode
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