Explore SW1A 1DH in Westminster through its map and available local datasets. The outline is an approximate boundary derived from address locations, while the information below distinguishes full-postcode records from statistics covering surrounding official areas. Census 2021 records 5 residents and 3 households at the exact postcode.
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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 1DH |
| Postcode without spaces | SW1A1DH |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | March 1983 |
| Directory version | 2026-06 |
| Latitude | 51.5048200 |
| Longitude | -0.1390730 |
| British National Grid | 529,252 E, 180,073 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.
These Census figures are matched directly to the full postcode, rather than inferred from a wider neighbourhood.
| Residents | 5 |
| Households | 3 |
| Female residents | 2 |
| Male residents | 3 |
| Residents per household | 1.7 |
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.
Companies House records whose registered-office address uses this exact postcode.
Limited Liability Partnership
Incorporated 11 February 2026
None Supplied
Limited Liability Partnership
Incorporated 22 August 2025
None Supplied
Limited Liability Partnership
Incorporated 1 August 2017
None Supplied
Limited Liability Partnership
Incorporated 17 October 2014
None Supplied
Private Limited Company
Incorporated 2 October 2012
47910 - Retail sale via mail order houses or via Internet
Limited Liability Partnership
Incorporated 8 August 2006
None Supplied
Private Limited Company
Incorporated 31 August 2005
82110 - Combined office administrative service activities
Private Limited Company
Incorporated 18 June 2004
55100 - Hotels and similar accommodation
Private Limited Company
Incorporated 14 January 2000
74990 - Non-trading company
Private Limited Company
Incorporated 25 November 1999
64205 - Activities of financial services holding companies
Private Limited Company
Incorporated 12 January 1983
55100 - Hotels and similar accommodation
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Westminster 018C includes SW1A 1DH 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 1DH is in Westminster, England.
The Census 2021 postcode-level dataset records 5 residents at SW1A 1DH. This is an exact postcode count.
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 1DH postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.