W1W postcode district: City of Westminster and around
W1W is a postcode district in England, with 621 postcodes in use in 4 sectors. It has postcodes in City of Westminster, Islington and Camden. It is split between 2 councils: Westminster (613 postcodes) and Islington (8).
- Postcodes in use
- 621
- Sectors
- 4
- Councils
- 2 councils
- Places
- 3 places
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
Every postcode in W1W, by flood risk
- A home or business at high risk: 0
- At medium risk at worst: 0
- At low risk at worst: 0
- At very low risk only: 0
- Not on the at-risk list: 621
Of the 621 postcodes in W1W that ONS places, 621 are not on the Environment Agency's at-risk list.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.
The middle of its postcodes: latitude 51.5192, longitude -0.1409. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Environment Agency flood risk, published 6 July 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
What broadband can you get in W1W?
Ofcom reports on 574 of the 621 postcodes in W1W. At 549 of them every home and business can get gigabit broadband.
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
Is W1W at risk of flooding?
None of the 621 postcodes in W1W is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.
Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.
Source: Environment Agency flood risk, published 6 July 2026.
What do homes sell for in W1W?
Homes in W1W sold for a typical £750,000 in the 12 months to August 2026, across 18 sales, HM Land Registry's figures show. The 12 months before gave £1,292,500 from 40 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.
- Flat or maisonette £750,000 18 sales
Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.
Source: HM Land Registry Price Paid Data, files dated 28 September 2026.
Postcodes in W1W
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces in W1W
Towns and villages with postcodes in W1W, and how many each has here.
Who covers W1W
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
What council am I in?Constituencies
- Cities of London and Westminster613
- Islington South and Finsbury8
Police force areas
- Metropolitan Police621
Next to W1W
"Next to" is by number: the districts before and after W1W in the W area.
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Environment Agency flood risk
- Ofcom Connected Nations
- HM Land Registry Price Paid Data
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
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