W1C postcode district: City of Westminster and around

W1C is a postcode district in England, with 141 postcodes in use in 2 sectors. It has postcodes in City of Westminster. Its council is Westminster.

Postcodes in use
141
Sectors
2
Council
Westminster
Places
City of Westminster

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

Every postcode in W1C, and which are new since 2020

Map of every postcode in W1C, by new since 2020 Of the 141 postcodes in W1C that ONS places, 5 are new since 2020 and 136 were in use before 2020. Places named: City of Westminster. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A40A41A5204 W1C 1AS: before 2020W1C 1AT: before 2020W1C 1AX: before 2020W1C 1AY: before 2020W1C 1AZ: before 2020W1C 1BA: before 2020W1C 1BB: before 2020W1C 1BE: before 2020W1C 1BF: before 2020W1C 1BG: before 2020W1C 1BQ: before 2020W1C 1BY: before 2020W1C 1DA: before 2020W1C 1DB: before 2020W1C 1DH: before 2020W1C 1DJ: before 2020W1C 1DL: before 2020W1C 1DN: before 2020W1C 1DP: before 2020W1C 1DR: before 2020W1C 1DS: before 2020W1C 1DW: before 2020W1C 1DX: before 2020W1C 1ES: before 2020W1C 1HG: before 2020W1C 1JB: before 2020W1C 1JE: before 2020W1C 1JF: before 2020W1C 1JG: before 2020W1C 1JJ: before 2020W1C 1JN: before 2020W1C 1JP: before 2020W1C 1JS: before 2020W1C 1JT: before 2020W1C 1JW: before 2020W1C 1JY: before 2020W1C 1LA: before 2020W1C 1LB: before 2020W1C 1LL: before 2020W1C 1LU: before 2020W1C 1LX: before 2020W1C 1LZ: before 2020W1C 1NA: before 2020W1C 2AA: before 2020W1C 2AB: before 2020W1C 2AD: before 2020W1C 2AE: before 2020W1C 2AG: before 2020W1C 2AH: before 2020W1C 2AL: before 2020W1C 2AN: before 2020W1C 2AP: before 2020W1C 2AQ: before 2020W1C 2AR: before 2020W1C 2AS: before 2020W1C 2AT: before 2020W1C 2AU: before 2020W1C 2BR: before 2020W1C 2BU: before 2020W1C 2DF: before 2020W1C 2DG: before 2020W1C 2DH: before 2020W1C 2DJ: before 2020W1C 2DN: before 2020W1C 2DR: before 2020W1C 2DS: before 2020W1C 2DT: before 2020W1C 2DW: before 2020W1C 2DX: before 2020W1C 2DY: before 2020W1C 2DZ: before 2020W1C 2HA: before 2020W1C 2HP: before 2020W1C 2HR: before 2020W1C 2HW: before 2020W1C 2HX: before 2020W1C 2HY: before 2020W1C 2JF: before 2020W1C 2JJ: before 2020W1C 2JL: before 2020W1C 2JN: before 2020W1C 2JR: before 2020W1C 2JS: before 2020W1C 2JU: before 2020W1C 2JW: before 2020W1C 2JX: before 2020W1C 2JZ: before 2020W1C 2NB: before 2020W1C 2PA: before 2020W1C 2PE: before 2020W1C 2PG: before 2020W1C 2PH: before 2020W1C 2PN: before 2020W1C 2PP: before 2020W1C 2PQ: before 2020W1C 2PR: before 2020W1C 2PS: before 2020W1C 2PT: before 2020W1C 2QJ: before 2020W1C 2QL: before 2020W1C 2QP: before 2020W1C 2QQ: before 2020W1C 2QW: before 2020W1C 1AD: new since 2020W1C 1AE: new since 2020W1C 1BH: new since 2020W1C 2DE: new since 2020 City of Westminster Map of every postcode in W1C, by new since 2020 Of the 141 postcodes in W1C that ONS places, 5 are new since 2020 and 136 were in use before 2020. Places named: City of Westminster. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. City of Westminster
  • New since 2020: 5
  • In use before 2020: 136

Of the 141 postcodes in W1C that ONS places, 5 are new since 2020 and 136 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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.5144, longitude -0.1491. 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

W1C 1APJune 2026W1C 1AEMay 2026W1C 2DESeptember 2025W1C 1ADSeptember 2024W1C 1BHMarch 2024

What broadband can you get in W1C?

Ofcom reports on 118 of the 141 postcodes in W1C. At 95 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit95 of 118
Postcodes where every home can get superfast96 of 118

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 W1C at risk of flooding?

None of the 141 postcodes in W1C 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 W1C

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

W1C 164 postcodesW1C 277 postcodes
UK postcode format explained

Places in W1C

Towns and villages with postcodes in W1C, and how many each has here.

City of Westminster postcodes,141

Who covers W1C

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 Westminster141

Police force areas

  • Metropolitan Police141

Next to W1C

W1B postcode district W1D postcode district All W districts City of Westminster postcodes

"Next to" is by number: the districts before and after W1C in the W area.

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