CB2 3 postcode sector in the CB2 district

CB2 3 is a sector of the CB2 district: every postcode that starts CB2 3. It has 65 postcodes in use, 23 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 CB2 3 sector, by flood risk

Map of every postcode in the CB2 3 sector, by flood risk Of the 65 postcodes in the CB2 3 sector that ONS places, 65 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Market. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. CB2 3AE: not on the flood risk listCB2 3AH: not on the flood risk listCB2 3AP: not on the flood risk listCB2 3AR: not on the flood risk listCB2 3AS: not on the flood risk listCB2 3AX: not on the flood risk listCB2 3BJ: not on the flood risk listCB2 3BU: not on the flood risk listCB2 3BZ: not on the flood risk listCB2 3DS: not on the flood risk listCB2 3DT: not on the flood risk listCB2 3DY: not on the flood risk listCB2 3EL: not on the flood risk listCB2 3ER: not on the flood risk listCB2 3ET: not on the flood risk listCB2 3HG: not on the flood risk listCB2 3HH: not on the flood risk listCB2 3HU: not on the flood risk listCB2 3HW: not on the flood risk listCB2 3HX: not on the flood risk listCB2 3JU: not on the flood risk listCB2 3JX: not on the flood risk listCB2 3LL: not on the flood risk listCB2 3LP: not on the flood risk listCB2 3LR: not on the flood risk listCB2 3LS: not on the flood risk listCB2 3NA: not on the flood risk listCB2 3NB: not on the flood risk listCB2 3ND: not on the flood risk listCB2 3NE: not on the flood risk listCB2 3NH: not on the flood risk listCB2 3NJ: not on the flood risk listCB2 3NR: not on the flood risk listCB2 3NZ: not on the flood risk listCB2 3PA: not on the flood risk listCB2 3PE: not on the flood risk listCB2 3PF: not on the flood risk listCB2 3PJ: not on the flood risk listCB2 3PP: not on the flood risk listCB2 3PQ: not on the flood risk listCB2 3PT: not on the flood risk listCB2 3QA: not on the flood risk listCB2 3QB: not on the flood risk listCB2 3QD: not on the flood risk listCB2 3QE: not on the flood risk listCB2 3QF: not on the flood risk listCB2 3QJ: not on the flood risk listCB2 3QN: not on the flood risk listCB2 3QY: not on the flood risk listCB2 3QZ: not on the flood risk listCB2 3RD: not on the flood risk listCB2 3RF: not on the flood risk listCB2 3RH: not on the flood risk listCB2 3RQ: not on the flood risk listCB2 3RR: not on the flood risk list Market Map of every postcode in the CB2 3 sector, by flood risk Of the 65 postcodes in the CB2 3 sector that ONS places, 65 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Market. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Market
  • 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: 65

Of the 65 postcodes in the CB2 3 sector that ONS places, 65 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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

CB2 3UG

Postcodes in CB2 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.

CB2 3AECB2 3AHCB2 3APCB2 3ARCB2 3ASCB2 3AXCB2 3BJCB2 3BUCB2 3BZCB2 3DSCB2 3DTCB2 3DYCB2 3DZCB2 3EACB2 3EBCB2 3EGCB2 3EHCB2 3EJCB2 3ELCB2 3ENCB2 3EQCB2 3ERCB2 3ETCB2 3HGCB2 3HHCB2 3HUCB2 3HWCB2 3HXCB2 3JUCB2 3JXCB2 3LLCB2 3LPCB2 3LRCB2 3LSCB2 3NACB2 3NBCB2 3NDCB2 3NECB2 3NHCB2 3NJCB2 3NRCB2 3NZCB2 3PACB2 3PECB2 3PFCB2 3PJCB2 3PPCB2 3PQCB2 3PTCB2 3QACB2 3QBCB2 3QDCB2 3QECB2 3QFCB2 3QJCB2 3QNCB2 3QYCB2 3QZCB2 3RDCB2 3RFCB2 3RHCB2 3RQCB2 3RRCB2 3TACB2 3UG

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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