SA3
Postcode districtPostcode district covering Swansea, Mumbles and West Cross, in Swansea.
Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SA3 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 95% of people in SA3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How SA3 compares
Each dot is a postcode district. The black line marks the middle one.
Is SA3 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SA3 at a rate of 42.4 per 1,000 people.
That compares with 86.6 per 1,000 people across the SA postcode area.
In August 2026 alone, 123 cases of crime and anti-social behaviour were recorded in SA3.
In the 12 months to August 2026, the most common types were violence and sexual offences (446), other crime (252) and anti-social behaviour (143).
A year earlier, the recorded crime rate in SA3 was 44.2 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Deprivation in SA3, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SA3 has no single figure. Of its 17 neighbourhoods with a rank:
- Decile 3: 2 neighbourhoods
- Decile 7: 1 neighbourhood
- Decile 8: 1 neighbourhood
- Decile 9: 1 neighbourhood
- Decile 10 (Wales’s least deprived 10%): 12 neighbourhoods
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in SA3
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Swansea 028A | 1,748 | 18.7 per 1,000 | 10 | 77.7% |
| Swansea 028B | 1,474 | 28.5 per 1,000 | 10 | 65.6% |
| Swansea 028C | 1,422 | 36.9 per 1,000 | 10 | 95.2% |
| Swansea 028D | 1,144 | 13.8 per 1,000 | 10 | 98.8% |
| Swansea 029A | 1,679 | 14.2 per 1,000 | 10 | 100.0% |
| Swansea 029B | 1,550 | 24.3 per 1,000 | 10 | 99.9% |
| Swansea 029C | 1,316 | 189.7 per 1,000 | 3 | 97.7% |
| Swansea 029D | 1,733 | 76.3 per 1,000 | 3 | 100.0% |
| Swansea 030A | 1,626 | 31.7 per 1,000 | 7 | 36.3% |
| Swansea 030B | 1,773 | 39.5 per 1,000 | 8 | 50.8% |
| Swansea 030C | 1,044 | 26.9 per 1,000 | 9 | 71.7% |
| Swansea 030D | 1,602 | 15.2 per 1,000 | 10 | 41.6% |
| Swansea 031A | 1,820 | 10.7 per 1,000 | 10 | 87.1% |
| Swansea 031B | 1,649 | 40.5 per 1,000 | 10 | 70.2% |
| Swansea 031C | 1,283 | 67.8 per 1,000 | 10 | 97.1% |
| Swansea 031D | 1,255 | 62.3 per 1,000 | 10 | 97.2% |
| Swansea 031E | 1,249 | 48.2 per 1,000 | 10 | 94.3% |
MPs for SA3
- Tonia AntoniazziLabourMP for Gower99% of SA3’s postcodes
- Carolyn HarrisLabourMP for Neath and Swansea East1.0% of SA3’s postcodes
- Torsten BellLabourMP for Swansea West0.3% of SA3’s postcodes
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in SA34
Postcode sectors in SA36
Council1
Towns in SA31
Postcode districts next to SA32
More in the SA postcode area2
SA3 in brief
SA3 is a postcode district covering Swansea, Mumbles and West Cross, in Swansea.
About 25,926 people lived in SA3 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £370,000 in 2025 across 424 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 42.4 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SA3 was £370,000 in 2025.
SA3 had 25,362 usual residents at the census.
About 95% of people in SA3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SA3, 80.0% of homes and businesses could get gigabit-capable broadband in January 2026.