W1A postcode district: Islington and around

W1A is a postcode district in England, with 141 postcodes in use in 10 sectors. It has postcodes in Islington and City of Westminster. It is split between 2 councils: Islington (137 postcodes) and Westminster (4).

Postcodes in use
141
Sectors
10
Councils
2 councils
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in W1A, and which are new since 2020

Map of every postcode in W1A, by new since 2020 Of the 141 postcodes in W1A that ONS places, 41 are new since 2020 and 100 were in use before 2020. One group of new postcodes is outlined: 41 new postcodes since 2020. Places named: Clerkenwell. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. W1A 1AA: before 2020W1A 1AB: before 2020W1A 3AE: before 2020W1A 9LB: before 2020W1A 0YU: new since 2020 Clerkenwell 41 new postcodes since 2020, outlined: this goes to W1A 0YU, the newest of them41 new postcodes since 2020 Map of every postcode in W1A, by new since 2020 Of the 141 postcodes in W1A that ONS places, 41 are new since 2020 and 100 were in use before 2020. One group of new postcodes is outlined: 41 new postcodes since 2020. Places named: City of Westminster. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A40A4200A501 City of Westminster 41 new postcodes since 2020, outlined: this goes to W1A 0YU, the newest of them41 new postcodes since 2020
  • New since 2020: 41
  • In use before 2020: 100
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 141 postcodes in W1A that ONS places, 41 are new since 2020 and 100 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 600 metres of each other. It is not a boundary, and 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 51.5244, longitude -0.1129. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: 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. How we use them

The 5 newest postcodes

W1A 0YUJuly 2026W1A 7FJJuly 2026W1A 8DXJuly 2026W1A 7HGJune 2026W1A 8DWJune 2026

Where the new postcodes lie together

  • 41 new postcodes since 2020, outlined on the map. W1A 0YU, is the newest of them.

What broadband can you get in W1A?

Ofcom reports on 3 of the 141 postcodes in W1A. At 2 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit2 of 3
Postcodes where every home can get superfast2 of 3

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 checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is W1A at risk of flooding?

None of the 141 postcodes in W1A 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, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

Postcodes in W1A

Pick a sector, then a postcode. A sector is the district plus the next digit.

W1A 03 postcodesW1A 111 postcodesW1A 216 postcodesW1A 318 postcodesW1A 417 postcodesW1A 513 postcodesW1A 623 postcodesW1A 720 postcodesW1A 814 postcodesW1A 96 postcodes
UK postcode format explained

Places in W1A

Towns and villages with postcodes in W1A, and how many each has here.

Islington postcodes,137City of Westminster postcodes,4

Who covers W1A

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

  • Islington South and Finsbury137
  • Cities of London and Westminster4

Police force areas

  • Metropolitan Police141

Next to W1A

W1B postcode district All W districts Islington postcodes

"Next to" is by number: the district after W1A in the W area.

Check a postcode

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