SA1 postcode district: Swansea and around
SA1 is a postcode district in Wales, with 1,300 postcodes in use in 9 sectors. It has postcodes in Swansea. It is split between 2 councils: Swansea (1,287 postcodes) and Neath Port Talbot (13).
- Postcodes in use
- 1,300
- Sectors
- 9
- Councils
- 2 councils
- Places
- Swansea
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources
Every postcode in SA1, and which are new since 2020
- New since 2020: 69
- In use before 2020: 1,231
- Outline: where 5 or more new postcodes since 2020 lie together
Of the 1,300 postcodes in SA1 that ONS places, 69 are new since 2020 and 1,231 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. A dashed outline shows where 5 or more lie within 150 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 51.6267, longitude -3.9404. 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 5 newest postcodes
Where the new postcodes lie together
- 25 new postcodes since 2020, outlined on the map. SA1 9WZ, is the newest of them.
- 7 new postcodes since 2020, outlined on the map. SA1 7GG, is the newest of them.
- 5 new postcodes since 2020, outlined on the map. SA1 5EP, is the newest of them.
- 5 new postcodes since 2020, outlined on the map. SA1 3BU, is the newest of them.
What broadband can you get in SA1?
Ofcom reports on 1,194 of the 1,300 postcodes in SA1. At 969 of them every home and business can get gigabit broadband.
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 SA1?
Homes in SA1 sold for a typical £141,000 in the 12 months to August 2026, across 387 sales, down 0.4% on the 12 months before, HM Land Registry's figures show.
- Detached £255,000 9 sales
- Semi-detached £162,000 67 sales
- Terraced £142,000 225 sales
- Flat or maisonette £125,000 86 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 SA1
Pick a sector, then a postcode. A sector is the district plus the next digit.
Places in SA1
Towns and villages with postcodes in SA1, and how many each has here.
Who covers SA1
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
- Swansea1,287
- Neath Port Talbot13
Constituencies
- Swansea West916
- Neath and Swansea East366
- Gower18
Police force areas
- South Wales1,300
Next to SA1
"Next to" is by number: the district after SA1 in the SA area.
Check a postcode
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