SN1 1 postcode sector in the SN1 district

SN1 1 is a sector of the SN1 district: every postcode that starts SN1 1. It has 91 postcodes in use, 15 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 SN1 1 sector, by flood risk

Map of every postcode in the SN1 1 sector, by flood risk Of the 91 postcodes in the SN1 1 sector that ONS places, 91 are not on the Environment Agency's at-risk list. Places named: Queen's Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4259 SN1 1AE: not on the flood risk listSN1 1AF: not on the flood risk listSN1 1AG: not on the flood risk listSN1 1AH: not on the flood risk listSN1 1AP: not on the flood risk listSN1 1AQ: not on the flood risk listSN1 1BA: not on the flood risk listSN1 1BB: not on the flood risk listSN1 1BD: not on the flood risk listSN1 1BE: not on the flood risk listSN1 1BF: not on the flood risk listSN1 1BL: not on the flood risk listSN1 1BT: not on the flood risk listSN1 1BU: not on the flood risk listSN1 1BY: not on the flood risk listSN1 1DA: not on the flood risk listSN1 1DG: not on the flood risk listSN1 1DH: not on the flood risk listSN1 1DP: not on the flood risk listSN1 1DQ: not on the flood risk listSN1 1DR: not on the flood risk listSN1 1DS: not on the flood risk listSN1 1DT: not on the flood risk listSN1 1DW: not on the flood risk listSN1 1DX: not on the flood risk listSN1 1DY: not on the flood risk listSN1 1EA: not on the flood risk listSN1 1EB: not on the flood risk listSN1 1EE: not on the flood risk listSN1 1EL: not on the flood risk listSN1 1FA: not on the flood risk listSN1 1GH: not on the flood risk listSN1 1GW: not on the flood risk listSN1 1HE: not on the flood risk listSN1 1HF: not on the flood risk listSN1 1HH: not on the flood risk listSN1 1HN: not on the flood risk listSN1 1JL: not on the flood risk listSN1 1JQ: not on the flood risk listSN1 1JS: not on the flood risk listSN1 1JY: not on the flood risk listSN1 1JZ: not on the flood risk listSN1 1LA: not on the flood risk listSN1 1LD: not on the flood risk listSN1 1LE: not on the flood risk listSN1 1LF: not on the flood risk listSN1 1LL: not on the flood risk listSN1 1PJ: not on the flood risk listSN1 1PN: not on the flood risk listSN1 1PP: not on the flood risk listSN1 1PR: not on the flood risk listSN1 1PX: not on the flood risk listSN1 1PZ: not on the flood risk listSN1 1QB: not on the flood risk listSN1 1QF: not on the flood risk listSN1 1QP: not on the flood risk listSN1 1QS: not on the flood risk listSN1 1QT: not on the flood risk listSN1 1QU: not on the flood risk listSN1 1RA: not on the flood risk listSN1 1RE: not on the flood risk listSN1 1RL: not on the flood risk listSN1 1RN: not on the flood risk listSN1 1RT: not on the flood risk listSN1 1RU: not on the flood risk listSN1 1RZ: not on the flood risk listSN1 1SD: not on the flood risk listSN1 1SG: not on the flood risk listSN1 1SQ: not on the flood risk listSN1 1TN: not on the flood risk listSN1 1TU: not on the flood risk listSN1 1UQ: not on the flood risk list Queen's Park Map of every postcode in the SN1 1 sector, by flood risk Of the 91 postcodes in the SN1 1 sector that ONS places, 91 are not on the Environment Agency's at-risk list. Places named: Queen's Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A4259A4289 Queen's Park
  • 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: 91

Of the 91 postcodes in the SN1 1 sector that ONS places, 91 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

What do homes sell for in SN1 1?

HM Land Registry records 3 sales of homes in SN1 1 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 3 sales, too few to price

Standard sales of homes at market value at the postcodes that start SN1 1. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in SN1 1

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.

SN1 1AESN1 1AFSN1 1AGSN1 1AHSN1 1ALSN1 1APSN1 1AQSN1 1BASN1 1BBSN1 1BDSN1 1BESN1 1BFSN1 1BLSN1 1BPSN1 1BTSN1 1BUSN1 1BYSN1 1DASN1 1DGSN1 1DHSN1 1DPSN1 1DQSN1 1DRSN1 1DSSN1 1DTSN1 1DWSN1 1DXSN1 1DYSN1 1EASN1 1EBSN1 1EESN1 1ELSN1 1FASN1 1FESN1 1GHSN1 1GWSN1 1HESN1 1HFSN1 1HHSN1 1HLSN1 1HNSN1 1JLSN1 1JQSN1 1JSSN1 1JYSN1 1JZSN1 1LASN1 1LDSN1 1LESN1 1LFSN1 1LLSN1 1LPSN1 1LRSN1 1LSSN1 1LTSN1 1LUSN1 1LWSN1 1LXSN1 1LYSN1 1LZSN1 1PJSN1 1PNSN1 1PPSN1 1PRSN1 1PXSN1 1PZSN1 1QBSN1 1QFSN1 1QGSN1 1QNSN1 1QPSN1 1QSSN1 1QTSN1 1QUSN1 1RASN1 1RESN1 1RLSN1 1RNSN1 1RQSN1 1RTSN1 1RUSN1 1RZSN1 1SDSN1 1SGSN1 1SQSN1 1TNSN1 1TUSN1 1UQSN1 1YNSN1 1ZASN1 1ZQ

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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