WC2A 3 postcode sector in the WC2A district

WC2A 3 is a sector of the WC2A district: every postcode that starts WC2A 3. It has 62 postcodes in use, 13 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the WC2A 3 sector, and which are new since 2020

Map of every postcode in the WC2A 3 sector, by new since 2020 Of the 62 postcodes in the WC2A 3 sector that ONS places, 62 were in use before 2020. Places named: Holborn & Covent Garden, St James's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A401A4200A40A201 WC2A 3AA: before 2020WC2A 3AB: before 2020WC2A 3BP: before 2020WC2A 3ED: before 2020WC2A 3EG: before 2020WC2A 3HP: before 2020WC2A 3JA: before 2020WC2A 3JB: before 2020WC2A 3JH: before 2020WC2A 3JW: before 2020WC2A 3JX: before 2020WC2A 3LH: before 2020WC2A 3LJ: before 2020WC2A 3LY: before 2020WC2A 3LZ: before 2020WC2A 3NN: before 2020WC2A 3PD: before 2020WC2A 3PE: before 2020WC2A 3PF: before 2020WC2A 3PH: before 2020WC2A 3PT: before 2020WC2A 3PZ: before 2020WC2A 3QA: before 2020WC2A 3QB: before 2020WC2A 3QG: before 2020WC2A 3QH: before 2020WC2A 3QP: before 2020WC2A 3QQ: before 2020WC2A 3QS: before 2020WC2A 3RH: before 2020WC2A 3RJ: before 2020WC2A 3RS: before 2020WC2A 3SA: before 2020WC2A 3SB: before 2020WC2A 3SH: before 2020WC2A 3SP: before 2020WC2A 3SW: before 2020WC2A 3SZ: before 2020WC2A 3TA: before 2020WC2A 3TD: before 2020WC2A 3TG: before 2020WC2A 3TL: before 2020WC2A 3TN: before 2020WC2A 3TS: before 2020WC2A 3TX: before 2020WC2A 3UA: before 2020WC2A 3UP: before 2020WC2A 3UT: before 2020WC2A 3XB: before 2020WC2A 3XL: before 2020WC2A 3XT: before 2020 Holborn & Covent GardenSt James's Map of every postcode in the WC2A 3 sector, by new since 2020 Of the 62 postcodes in the WC2A 3 sector that ONS places, 62 were in use before 2020. Places named: Holborn & Covent Garden, St James's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A401 Holborn & Covent GardenSt James's
  • New since 2020: 0
  • In use before 2020: 62

Of the 62 postcodes in the WC2A 3 sector that ONS places, 62 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. Names in italics are council wards: we hold no town or village names here.

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

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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