# SA1 Postcode district covering Swansea and Mount Pleasant, in Swansea. SA1 is a postcode district covering Swansea and Mount Pleasant, in Swansea. Median sale price £145,000 in 2025. Recorded crime 161.8 per 1,000 people. Postcode district. Code SA1. In: [Postcodes](https://openindex.co.uk/postcode) › [SA](https://openindex.co.uk/postcode/sa) 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 SA1 postcode. [How census figures are added up](https://openindex.co.uk/sources/population) ## Key figures - **Median sale price: £145,000** (2025). The median price paid for a home in SA1 was £145,000 in 2025. Joint 88th cheapest of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/sa1#f-house-sales-median-price - **Population: 51,694** (2021). SA1 had 51,694 usual residents at the census (ONS Census 2021). 177th most populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/sa1#f-population - **People in radon Affected Area squares: 78%** (2022). About 78% of people in SA1 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/sa1#f-radon-affected-share - **Gigabit broadband coverage: 93.5%** (January 2026). In SA1, 93.5% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/sa1#f-gigabit-coverage ## On the map - [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SA1) (Worked out by Open Index · 2022): About 78% of people in SA1 live in a 1 km square that the radon atlas marks as a radon Affected Area. - [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=SA1) (Worked out by Open Index · 2025): 522 homes were sold in SA1 in 2025. - [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SA1) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SA1. - [Population by postcode district](https://openindex.co.uk/map/population?place=SA1) (Census 2021, England and Wales): SA1 had 51,694 usual residents at the census. ## How SA1 compares Each postcode district against every other postcode district the measure covers. | Measure | SA1 | Rank | Compared with | | --- | --- | --- | --- | | Median sale price | £145,000 | 2nd cheapest | 49 postcode districts, SA · 2025 | | Population | 51,694 | most populated | 52 postcode districts, SA · 2021 | | People in radon Affected Area squares | 78% | 7th fewest people in radon Affected Areas | 52 postcode districts, SA · 2022 | | Gigabit broadband coverage | 93.5% | 5th highest | 52 postcode districts, SA · Jan 2026 | ## Is SA1 safe? What police records show In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SA1 at a rate of 161.8 per 1,000 people. That compares with 86.6 per 1,000 people across the SA postcode area. In August 2026 alone, 893 cases of crime and anti-social behaviour were recorded in SA1. In the 12 months to August 2026, the most common types were violence and sexual offences (3,392), other crime (1,906) and shoplifting (1,223). A year earlier, the recorded crime rate in SA1 was 166.7 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 SA1, neighbourhood by neighbourhood - Deprivation is ranked by neighbourhood, so SA1 has no single figure. Of its 31 neighbourhoods with a rank: - Decile 1 (Wales’s most deprived 10%): 8 neighbourhoods - Decile 2: 3 neighbourhoods - Decile 3: 6 neighbourhoods - Decile 4: 4 neighbourhoods - Decile 5: 3 neighbourhoods - Decile 6: 2 neighbourhoods - Decile 7: 4 neighbourhoods - Decile 9: 1 neighbourhood Source: Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales. ## Neighbourhoods in SA1 | Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband | | --- | --- | --- | --- | --- | | [Neath Port Talbot 010I](https://openindex.co.uk/neath-port-talbot/neighbourhood/w01001989) | 3,409 | 44.1 per 1,000 | 9 | 61.2% | | [Swansea 014A](https://openindex.co.uk/swansea/neighbourhood/w01000738) | 1,762 | 53.6 per 1,000 | 1 | 98.5% | | [Swansea 014B](https://openindex.co.uk/swansea/neighbourhood/w01000739) | 2,211 | 83.3 per 1,000 | 3 | 97.9% | | [Swansea 014C](https://openindex.co.uk/swansea/neighbourhood/w01000740) | 1,561 | 23.7 per 1,000 | 7 | 89.2% | | [Swansea 014D](https://openindex.co.uk/swansea/neighbourhood/w01000741) | 1,875 | 150.2 per 1,000 | 4 | 94.3% | | [Swansea 016A](https://openindex.co.uk/swansea/neighbourhood/w01000742) | 1,662 | 162.2 per 1,000 | 1 | 99.5% | | [Swansea 016B](https://openindex.co.uk/swansea/neighbourhood/w01000744) | 1,523 | 185.0 per 1,000 | 2 | 99.4% | | [Swansea 016D](https://openindex.co.uk/swansea/neighbourhood/w01000788) | 1,498 | 86.6 per 1,000 | 3 | 97.1% | | [Swansea 016E](https://openindex.co.uk/swansea/neighbourhood/w01000789) | 1,416 | 83.6 per 1,000 | 2 | 100.0% | | [Swansea 016F](https://openindex.co.uk/swansea/neighbourhood/w01000790) | 2,675 | 70.2 per 1,000 | 4 | 98.1% | | [Swansea 019A](https://openindex.co.uk/swansea/neighbourhood/w01000862) | 1,605 | 111.2 per 1,000 | 1 | 100.0% | | [Swansea 019B](https://openindex.co.uk/swansea/neighbourhood/w01000863) | 1,681 | 112.7 per 1,000 | 1 | 99.8% | | [Swansea 019C](https://openindex.co.uk/swansea/neighbourhood/w01000864) | 1,663 | 70.6 per 1,000 | 1 | 99.6% | | [Swansea 019D](https://openindex.co.uk/swansea/neighbourhood/w01000865) | 1,426 | 105.9 per 1,000 | 2 | 100.0% | | [Swansea 019E](https://openindex.co.uk/swansea/neighbourhood/w01000866) | 1,177 | 85.9 per 1,000 | 1 | 100.0% | | [Swansea 019F](https://openindex.co.uk/swansea/neighbourhood/w01000867) | 1,284 | 96.1 per 1,000 | 1 | 99.8% | | [Swansea 021A](https://openindex.co.uk/swansea/neighbourhood/w01000849) | 2,203 | 70.5 per 1,000 | 3 | 98.7% | | [Swansea 021C](https://openindex.co.uk/swansea/neighbourhood/w01000851) | 1,645 | 36.0 per 1,000 | 5 | 97.8% | | [Swansea 021D](https://openindex.co.uk/swansea/neighbourhood/w01000852) | 1,459 | 112.6 per 1,000 | 5 | 98.5% | | [Swansea 021E](https://openindex.co.uk/swansea/neighbourhood/w01001995) | 1,363 | 50.8 per 1,000 | 3 | 94.6% | | [Swansea 021F](https://openindex.co.uk/swansea/neighbourhood/w01001996) | 1,407 | 115.4 per 1,000 | 6 | 92.3% | | [Swansea 024A](https://openindex.co.uk/swansea/neighbourhood/w01000747) | 1,587 | 139.5 per 1,000 | 4 | 92.2% | | [Swansea 024C](https://openindex.co.uk/swansea/neighbourhood/w01000869) | 1,522 | 111.7 per 1,000 | 7 | 99.9% | | [Swansea 025B](https://openindex.co.uk/swansea/neighbourhood/w01000745) | 2,469 | 370.1 per 1,000 | 3 | 92.7% | | [Swansea 025C](https://openindex.co.uk/swansea/neighbourhood/w01000746) | 1,430 | 124.0 per 1,000 | 3 | 93.8% | | [Swansea 025F](https://openindex.co.uk/swansea/neighbourhood/w01001955) | 1,930 | 964.0 per 1,000 | 1 | 85.0% | | [Swansea 025H](https://openindex.co.uk/swansea/neighbourhood/w01001958) | 1,304 | 205.0 per 1,000 | 7 | 87.2% | | [Swansea 025I](https://openindex.co.uk/swansea/neighbourhood/w01001997) | 1,990 | 380.1 per 1,000 | 6 | 62.7% | | [Swansea 026A](https://openindex.co.uk/swansea/neighbourhood/w01000749) | 1,990 | 118.6 per 1,000 | 4 | 96.6% | | [Swansea 026B](https://openindex.co.uk/swansea/neighbourhood/w01000871) | 1,770 | 72.9 per 1,000 | 5 | 99.1% | | [Swansea 026D](https://openindex.co.uk/swansea/neighbourhood/w01000875) | 1,904 | 63.7 per 1,000 | 7 | 91.2% | ## Your MP - [Swansea West](https://openindex.co.uk/constituency/swansea-west): Torsten Bell (Labour), MP since July 2024. 70% of the people here. - [Neath and Swansea East](https://openindex.co.uk/constituency/neath-and-swansea-east): Carolyn Harris (Labour), MP since July 2024. 28% of the people here. - [Gower](https://openindex.co.uk/constituency/gower): Tonia Antoniazzi (Labour), MP since July 2024. 1.4% of the people here. As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API. ## Middle areas in SA1 [Bon-y-maen](https://openindex.co.uk/swansea/bon-y-maen), [Brynmill](https://openindex.co.uk/swansea/brynmill), [Central Swansea](https://openindex.co.uk/swansea/central-swansea), [Landore](https://openindex.co.uk/swansea/landore), [St Thomas](https://openindex.co.uk/swansea/st-thomas), [Townhill](https://openindex.co.uk/swansea/townhill) ## Postcode sectors in SA1 [SA1 1 (156 postcodes)](https://openindex.co.uk/postcode/sa1-1), [SA1 2 (158 postcodes)](https://openindex.co.uk/postcode/sa1-2), [SA1 3 (144 postcodes)](https://openindex.co.uk/postcode/sa1-3), [SA1 4 (108 postcodes)](https://openindex.co.uk/postcode/sa1-4), [SA1 5 (97 postcodes)](https://openindex.co.uk/postcode/sa1-5), [SA1 6 (275 postcodes)](https://openindex.co.uk/postcode/sa1-6), [SA1 7 (147 postcodes)](https://openindex.co.uk/postcode/sa1-7), [SA1 8 (173 postcodes)](https://openindex.co.uk/postcode/sa1-8), [SA1 9 (42 postcodes)](https://openindex.co.uk/postcode/sa1-9) ## Council [Swansea](https://openindex.co.uk/swansea) ## Towns in SA1 [Swansea](https://openindex.co.uk/town/swansea) ## Postcode districts next to SA1 [SA2](https://openindex.co.uk/postcode/sa2), [SA5](https://openindex.co.uk/postcode/sa5), [SA6](https://openindex.co.uk/postcode/sa6), [SA7](https://openindex.co.uk/postcode/sa7), [SA10](https://openindex.co.uk/postcode/sa10) ## Nearest rail stations [Swansea (2.0 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-3.9415,51.6251), [Llansamlet (3.9 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-3.8847,51.6615), [Skewen (5.8 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-3.8465,51.6614) ## More in the SA postcode area [All SA postcode districts](https://openindex.co.uk/postcode/sa), [Every UK postcode area](https://openindex.co.uk/postcode) ## SA1 in brief SA1 is a postcode district covering Swansea and Mount Pleasant, in Swansea. About 58,176 people lived in SA1 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £145,000 in 2025 across 522 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 161.8 per 1,000 people in the 12 months to August 2026 (police.uk). The median price paid for a home in SA1 was £145,000 in 2025. SA1 had 51,694 usual residents at the census. About 78% of people in SA1 live in a 1 km square that the radon atlas marks as a radon Affected Area. In SA1, 93.5% of homes and businesses could get gigabit-capable broadband in January 2026. ## About - Type: Postcode district - Code: SA1 - Postcode area: [SA](https://openindex.co.uk/postcode/sa) - Constituency: [Swansea West †](https://openindex.co.uk/constituency/swansea-west) - Council: [Swansea †](https://openindex.co.uk/swansea) - Area: 22.46 km² - People, mid-2024: 58,176* - Neighbourhoods: 31 - Output areas: 174 * People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact. † Best fit: the constituency, council and nation this postcode district mostly lies in. Its edges do not follow theirs. ## Next door [SA2](https://openindex.co.uk/postcode/sa2), [SA10](https://openindex.co.uk/postcode/sa10), [SA7](https://openindex.co.uk/postcode/sa7), [SA5](https://openindex.co.uk/postcode/sa5), [SA6](https://openindex.co.uk/postcode/sa6) ## Latest updates for SA1 - August 2026 house prices published: HM Land Registry and partners · Oct 2026. - September 2026 rent published: ONS private rents · Oct 2026. - Dental practices updated: NHS England · Oct 2026. - Schools updated: Ofsted · Oct 2026. The same figures as JSON: https://openindex.co.uk/v1/places/SA1 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sa1, or to one figure with its anchor, https://openindex.co.uk/postcode/sa1#f-house-sales-median-price. Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it. Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/sa1