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: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Every postcode in W1A, by gigabit broadband

Map of every postcode in W1A, by gigabit broadband Of the 141 postcodes in W1A that ONS places, 1 have no home or business that can get gigabit, 2 can all get it and 138 have no Ofcom figure. Places named: Clerkenwell. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. W1A 3AE: no Ofcom figureW1A 9LB: no Ofcom figureW1A 1AA: gigabit for allW1A 2JZ: gigabit for allW1A 1AB: no gigabit Clerkenwell Map of every postcode in W1A, by gigabit broadband Of the 141 postcodes in W1A that ONS places, 1 have no home or business that can get gigabit, 2 can all get it and 138 have no Ofcom figure. 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
  • No home or business can get gigabit: 1
  • Some can get gigabit: 0
  • Every home and business can get gigabit: 2
  • Ofcom gives no figure: 138

Of the 141 postcodes in W1A that ONS places, 1 have no home or business that can get gigabit, 2 can all get it and 138 have no Ofcom figure.

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 51.5244, longitude -0.1129. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 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.

Postcodes without gigabit

W1A 1AB

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, Connected Nations, Spring 2026, data for January 2026.

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 flood risk, published 6 July 2026.

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

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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