SA4
Postcode districtPostcode district covering Gorseinon and Pontarddulais, 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 SA4 postcode. How census figures are added up
Gigabit coverage by postcode district
Connected Nations (Ofcom) · January 2026
In SA4, 90.3% of homes and businesses could get gigabit-capable broadband in January 2026.
How SA4 compares
Each dot is a postcode district. The black line marks the middle one.
Is SA4 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SA4 at a rate of 45.5 per 1,000 people.
That compares with 86.6 per 1,000 people across the SA postcode area.
In August 2026 alone, 206 cases of crime and anti-social behaviour were recorded in SA4.
In the 12 months to August 2026, the most common types were violence and sexual offences (956), other crime (444) and anti-social behaviour (268).
A year earlier, the recorded crime rate in SA4 was 52.7 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 SA4, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SA4 has no single figure. Of its 29 neighbourhoods with a rank:
- Decile 2: 3 neighbourhoods
- Decile 3: 1 neighbourhood
- Decile 5: 3 neighbourhoods
- Decile 6: 4 neighbourhoods
- Decile 7: 4 neighbourhoods
- Decile 8: 1 neighbourhood
- Decile 9: 11 neighbourhoods
- Decile 10 (Wales’s least deprived 10%): 2 neighbourhoods
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in SA4
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Carmarthenshire 017A | 1,810 | 36.9 per 1,000 | 9 | 94.3% |
| Carmarthenshire 017B | 1,666 | 29.4 per 1,000 | 7 | 98.2% |
| Swansea 001A | 2,004 | 40.6 per 1,000 | 9 | 97.9% |
| Swansea 001B | 2,046 | 57.7 per 1,000 | 6 | 92.0% |
| Swansea 001C | 1,259 | 46.3 per 1,000 | 7 | 95.3% |
| Swansea 001D | 1,205 | 56.5 per 1,000 | 2 | 93.7% |
| Swansea 004B | 1,590 | 41.6 per 1,000 | 9 | 66.4% |
| Swansea 004C | 1,862 | 22.7 per 1,000 | 9 | 95.2% |
| Swansea 004D | 2,316 | 20.6 per 1,000 | 10 | 93.2% |
| Swansea 004E | 1,264 | 66.2 per 1,000 | 3 | 88.6% |
| Swansea 005B | 1,623 | 64.6 per 1,000 | 6 | 97.9% |
| Swansea 005C | 1,469 | 57.8 per 1,000 | 5 | 98.8% |
| Swansea 005D | 1,416 | 50.2 per 1,000 | 6 | 83.7% |
| Swansea 005E | 1,384 | 34.3 per 1,000 | 9 | 97.9% |
| Swansea 005F | 1,529 | 54.8 per 1,000 | 2 | 97.9% |
| Swansea 005G | 1,403 | 168.7 per 1,000 | 2 | 91.5% |
| Swansea 005H | 1,427 | 43.6 per 1,000 | 6 | 96.2% |
| Swansea 007A | 1,294 | 47.4 per 1,000 | 7 | 98.0% |
| Swansea 007B | 1,780 | 17.7 per 1,000 | 10 | 98.7% |
| Swansea 007C | 1,262 | 30.6 per 1,000 | 9 | 94.2% |
| Swansea 007D | 2,347 | 59.9 per 1,000 | 5 | 94.3% |
| Swansea 007E | 1,680 | 31.2 per 1,000 | 9 | 98.0% |
| Swansea 007F | 1,276 | 29.1 per 1,000 | 7 | 99.7% |
| Swansea 012B | 1,703 | 40.0 per 1,000 | 9 | 99.8% |
| Swansea 012C | 1,781 | 54.6 per 1,000 | 9 | 98.3% |
| Swansea 012D | 1,462 | 68.4 per 1,000 | 5 | 88.8% |
| Swansea 018A | 1,476 | 29.4 per 1,000 | 9 | 71.7% |
| Swansea 018B | 1,630 | 17.6 per 1,000 | 9 | 83.6% |
| Swansea 018C | 1,922 | 29.8 per 1,000 | 8 | 26.7% |
MPs for SA4
- Tonia AntoniazziLabourMP for Gower92% of SA4’s postcodes
- Dame Nia GriffithLabourMP for Llanelli7.9% of SA4’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 SA47
Postcode sectors in SA47
Council1
Towns in SA41
Postcode districts next to SA45
Nearest rail stations4
More in the SA postcode area2
SA4 in brief
SA4 is a postcode district covering Gorseinon and Pontarddulais, in Swansea.
About 47,680 people lived in SA4 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £232,000 in 2025 across 736 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 45.5 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SA4 was £232,000 in 2025.
SA4 had 45,944 usual residents at the census.
In SA4, 90.3% of homes and businesses could get gigabit-capable broadband in January 2026.
In SA4, 2.4% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.