SA3 postcode district: Swansea and around
SA3 is a postcode district in Wales, with 727 postcodes in use in 6 sectors. It has postcodes in Swansea and Bishopston. Its council is Swansea.
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources
Every postcode in SA3, by gigabit broadband
- No home or business can get gigabit: 115
- Some can get gigabit: 135
- Every home and business can get gigabit: 462
- Ofcom gives no figure: 15
- Outline: where 5 or more postcodes without gigabit lie together
Of the 727 postcodes in SA3 that ONS places, 115 have no home or business that can get gigabit, 135 have some that can, 462 can all get it and 15 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 190 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 51.5811, longitude -4.0525. 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
115 postcodes here have no gigabit. These are the 12 first in postcode order.
Where the postcodes without gigabit lie together
What broadband can you get in SA3?
Ofcom reports on 712 of the 727 postcodes in SA3. At 462 of them every home and business can get gigabit broadband, and at 27 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 SA3?
Homes in SA3 sold for a typical £360,000 in the 12 months to August 2026, across 303 sales, down 2.7% on the 12 months before, HM Land Registry's figures show.
- 12 months to August 2025
- £370,000
- 12 months to August 2026
- £360,000
▼ down 2.7% on the 12 months before
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 SA3
Pick a sector, then a postcode. A sector is the district plus the next digit.
Places in SA3
Towns and villages with postcodes in SA3, and how many each has here.
Who covers SA3
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
- Swansea727
Constituencies
- Gower718
- Neath and Swansea East7
- Swansea West2
Police force areas
- South Wales727
Next to SA3
"Next to" is by number: the districts before and after SA3 in the SA area.
Check a postcode
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