This page brings together the map and available local information for SW1A 1BA in Westminster. The boundary shown is an approximation created from address points, and each data section explains whether its figures apply to the full postcode or a wider statistical area.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | SW1A 1BA |
| Postcode without spaces | SW1A1BA |
| Status | Active postcode |
| User type | Large user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5040500 |
| Longitude | -0.1385280 |
| British National Grid | 529,292 E, 179,988 N |
| Country | England |
| Region | London |
| Local authority | Westminster |
| Output Area (2021) | E00023937 |
| LSOA (2021) | E01004736 |
| MSOA (2021) | E02000977 |
| Electoral ward | E05013806 |
| Westminster constituency | E14001172 |
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.
Deprivation is published for the postcode's containing Lower Layer Super Output Area, a neighbourhood geography covering more than one postcode.
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Westminster 018C includes SW1A 1BA and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Other theft | 104 |
| Theft from the person | 95 |
| Violence and sexual offences | 79 |
| Anti-social behaviour | 65 |
| Public order | 35 |
| Shoplifting | 20 |
| Drugs | 14 |
| Robbery | 12 |
| Vehicle crime | 11 |
| Possession of weapons | 8 |
| Bicycle theft | 5 |
| Burglary | 2 |
| Other crime | 2 |
Answers use the geographic scope stated with each dataset above.
SW1A 1BA is in Westminster, England.
The deprivation figures describe the containing Lower Layer Super Output Area, not only the individual postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full SW1A 1BA postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.