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, by flood risk

Map of every postcode in the WC2A 3 sector, by flood risk Of the 62 postcodes in the WC2A 3 sector that ONS places, 62 are not on the Environment Agency's at-risk list. 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: not on the flood risk listWC2A 3AB: not on the flood risk listWC2A 3BP: not on the flood risk listWC2A 3ED: not on the flood risk listWC2A 3EG: not on the flood risk listWC2A 3HP: not on the flood risk listWC2A 3JA: not on the flood risk listWC2A 3JB: not on the flood risk listWC2A 3JH: not on the flood risk listWC2A 3JW: not on the flood risk listWC2A 3JX: not on the flood risk listWC2A 3LH: not on the flood risk listWC2A 3LJ: not on the flood risk listWC2A 3LY: not on the flood risk listWC2A 3LZ: not on the flood risk listWC2A 3NN: not on the flood risk listWC2A 3PD: not on the flood risk listWC2A 3PE: not on the flood risk listWC2A 3PF: not on the flood risk listWC2A 3PH: not on the flood risk listWC2A 3PT: not on the flood risk listWC2A 3PZ: not on the flood risk listWC2A 3QA: not on the flood risk listWC2A 3QB: not on the flood risk listWC2A 3QG: not on the flood risk listWC2A 3QH: not on the flood risk listWC2A 3QP: not on the flood risk listWC2A 3QQ: not on the flood risk listWC2A 3QS: not on the flood risk listWC2A 3RH: not on the flood risk listWC2A 3RJ: not on the flood risk listWC2A 3RS: not on the flood risk listWC2A 3SA: not on the flood risk listWC2A 3SB: not on the flood risk listWC2A 3SH: not on the flood risk listWC2A 3SP: not on the flood risk listWC2A 3SW: not on the flood risk listWC2A 3SZ: not on the flood risk listWC2A 3TA: not on the flood risk listWC2A 3TD: not on the flood risk listWC2A 3TG: not on the flood risk listWC2A 3TL: not on the flood risk listWC2A 3TN: not on the flood risk listWC2A 3TS: not on the flood risk listWC2A 3TX: not on the flood risk listWC2A 3UA: not on the flood risk listWC2A 3UP: not on the flood risk listWC2A 3UT: not on the flood risk listWC2A 3XB: not on the flood risk listWC2A 3XL: not on the flood risk listWC2A 3XT: not on the flood risk list Holborn & Covent GardenSt James's Map of every postcode in the WC2A 3 sector, by flood risk Of the 62 postcodes in the WC2A 3 sector that ONS places, 62 are not on the Environment Agency's at-risk list. 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
  • 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: 62

Of the 62 postcodes in the WC2A 3 sector that ONS places, 62 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.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; 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

Postcodes in WC2A 3

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

WC2A 3AAWC2A 3ABWC2A 3BPWC2A 3EDWC2A 3EGWC2A 3HPWC2A 3JAWC2A 3JBWC2A 3JHWC2A 3JWWC2A 3JXWC2A 3LHWC2A 3LJWC2A 3LNWC2A 3LYWC2A 3LZWC2A 3NNWC2A 3PDWC2A 3PEWC2A 3PFWC2A 3PHWC2A 3PPWC2A 3PTWC2A 3PZWC2A 3QAWC2A 3QBWC2A 3QGWC2A 3QHWC2A 3QNWC2A 3QPWC2A 3QQWC2A 3QSWC2A 3RDWC2A 3RHWC2A 3RJWC2A 3RSWC2A 3SAWC2A 3SBWC2A 3SHWC2A 3SPWC2A 3SRWC2A 3SUWC2A 3SWWC2A 3SZWC2A 3TAWC2A 3TDWC2A 3TGWC2A 3THWC2A 3TLWC2A 3TNWC2A 3TPWC2A 3TSWC2A 3TXWC2A 3UAWC2A 3UEWC2A 3UJWC2A 3UPWC2A 3UTWC2A 3WGWC2A 3XBWC2A 3XLWC2A 3XT

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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