Use this guide to understand SA1 1SN in Wales. Start with the interactive location and approximate postcode outline, then browse the available facts and local-area indicators. Labels show which figures relate to the exact postcode and which cover a larger geography.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | SA1 1SN |
| Postcode without spaces | SA11SN |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.6177500 |
| Longitude | -3.9380990 |
| British National Grid | 265,918 E, 192,771 N |
| Country | Wales |
| Output Area (2021) | W00003990 |
| LSOA (2021) | W01001997 |
| MSOA (2021) | W02000192 |
| Electoral ward | W05001068 |
| Westminster constituency | W07000108 |
The postcode is assigned to these official political geographies. Names and election results will be added when the ElectionMaps datasets are connected.
A detailed vector map covering a 500 metre radius around the postcode.
Open schools and active GP practices in the SA1 postcode district, ordered by straight-line distance where coordinates are available.
B
SCHOONER HOUSE, QUAY PARADE, SWANSEA, SA1 1SR
B
37 THE KINGSWAY, SWANSEA, SA1 5LF
B
CENTRAL CLINIC, 21 ORCHARD STREET, SWANSEA, SA1 5AT
B
200 OYSTERMOUTH ROAD, SWANSEA, SA1 3SR
B
COMMUNITY HEALTH CENTRE, 41 HIGH STREET, SWANSEA, SA1 1LT
Welsh establishment
18 Mansel St, Swansea, Swansea (Abertawe), SA1 5SG
B
YMCA, 1 THE KINGSWAY, SWANSEA, SA1 5JQ
B
BEACON CENTRE FOR HEALTH, LANGDON ROAD, SWANSEA, SA1 8QY
B
NICHOLL ST MEDICAL CENTR, 33 NICHOLL STREET, SWANSEA, SA1 4HF
B
SA1 MEDICAL CENTRE, LANGDON ROAD, SWANSEA, SA1 8QY
Welsh establishment
Grenfell Park Road, St Thoma's, Swansea, SA1 8EY
B
151 ST. HELENS ROAD, SWANSEA, SA1 4DF
Companies House records whose registered-office address uses this exact postcode.
PRI/LBG/NSC (Private, Limited by guarantee, no share capital, use of 'Limited' exemption)
Incorporated 24 May 1883
91020 - Museums activities
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Swansea 025I includes SA1 1SN and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Violence and sexual offences | 47 |
| Shoplifting | 17 |
| Anti-social behaviour | 11 |
| Drugs | 6 |
| Public order | 6 |
| Other theft | 4 |
| Criminal damage and arson | 3 |
| Bicycle theft | 2 |
| Other crime | 2 |
| Burglary | 1 |
Answers use the geographic scope stated with each dataset above.
SA1 1SN is in Wales.
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Explore other full postcodes in the same postcode sector.