SN4 0 postcode sector in the SN4 district

SN4 0 is a sector of the SN4 district: every postcode that starts SN4 0. It has 254 postcodes in use, one of them a large-user postcode. 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 SN4 0 sector, by flood risk

Map of every postcode in the SN4 0 sector, by flood risk Of the 254 postcodes in the SN4 0 sector that ONS places, 5 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 245 are not on the Environment Agency's at-risk list. Places named: Swindon, Royal Wootton Bassett, Wroughton, Chiseldon, Wanborough. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. M4A4361A419A3102 SN4 0AA: not on the flood risk listSN4 0AD: not on the flood risk listSN4 0AE: not on the flood risk listSN4 0AG: not on the flood risk listSN4 0AJ: not on the flood risk listSN4 0AN: not on the flood risk listSN4 0AP: not on the flood risk listSN4 0AQ: not on the flood risk listSN4 0AS: not on the flood risk listSN4 0AT: not on the flood risk listSN4 0AW: not on the flood risk listSN4 0AX: not on the flood risk listSN4 0AY: not on the flood risk listSN4 0AZ: not on the flood risk listSN4 0BA: not on the flood risk listSN4 0BE: not on the flood risk listSN4 0BF: not on the flood risk listSN4 0BP: not on the flood risk listSN4 0BY: not on the flood risk listSN4 0BZ: not on the flood risk listSN4 0DA: not on the flood risk listSN4 0DB: not on the flood risk listSN4 0DD: not on the flood risk listSN4 0DE: not on the flood risk listSN4 0DF: not on the flood risk listSN4 0DH: not on the flood risk listSN4 0DJ: not on the flood risk listSN4 0DL: not on the flood risk listSN4 0DP: not on the flood risk listSN4 0DQ: not on the flood risk listSN4 0DR: not on the flood risk listSN4 0DS: not on the flood risk listSN4 0DT: not on the flood risk listSN4 0DU: not on the flood risk listSN4 0DX: not on the flood risk listSN4 0DZ: not on the flood risk listSN4 0EB: not on the flood risk listSN4 0EF: not on the flood risk listSN4 0EJ: not on the flood risk listSN4 0EP: not on the flood risk listSN4 0ER: not on the flood risk listSN4 0ES: not on the flood risk listSN4 0ET: not on the flood risk listSN4 0EU: not on the flood risk listSN4 0EX: not on the flood risk listSN4 0EY: not on the flood risk listSN4 0EZ: not on the flood risk listSN4 0FA: not on the flood risk listSN4 0FF: not on the flood risk listSN4 0FG: not on the flood risk listSN4 0FH: not on the flood risk listSN4 0FJ: not on the flood risk listSN4 0FL: not on the flood risk listSN4 0FN: not on the flood risk listSN4 0FP: not on the flood risk listSN4 0FQ: not on the flood risk listSN4 0FR: not on the flood risk listSN4 0FS: not on the flood risk listSN4 0FU: not on the flood risk listSN4 0FX: not on the flood risk listSN4 0FY: not on the flood risk listSN4 0FZ: not on the flood risk listSN4 0GD: not on the flood risk listSN4 0GE: not on the flood risk listSN4 0GF: not on the flood risk listSN4 0GG: not on the flood risk listSN4 0GH: not on the flood risk listSN4 0GN: not on the flood risk listSN4 0GR: not on the flood risk listSN4 0HA: not on the flood risk listSN4 0HB: not on the flood risk listSN4 0HD: not on the flood risk listSN4 0HE: not on the flood risk listSN4 0HG: not on the flood risk listSN4 0HH: not on the flood risk listSN4 0HJ: not on the flood risk listSN4 0HN: not on the flood risk listSN4 0HR: not on the flood risk listSN4 0HS: not on the flood risk listSN4 0HT: not on the flood risk listSN4 0HU: not on the flood risk listSN4 0HW: not on the flood risk listSN4 0HY: not on the flood risk listSN4 0HZ: not on the flood risk listSN4 0JA: not on the flood risk listSN4 0JB: not on the flood risk listSN4 0JD: not on the flood risk listSN4 0JF: not on the flood risk listSN4 0JG: not on the flood risk listSN4 0JJ: not on the flood risk listSN4 0JL: not on the flood risk listSN4 0JN: not on the flood risk listSN4 0JR: not on the flood risk listSN4 0LB: not on the flood risk listSN4 0LE: not on the flood risk listSN4 0LH: not on the flood risk listSN4 0LN: not on the flood risk listSN4 0LP: not on the flood risk listSN4 0LQ: not on the flood risk listSN4 0LR: not on the flood risk listSN4 0LS: not on the flood risk listSN4 0LT: not on the flood risk listSN4 0LU: not on the flood risk listSN4 0NA: not on the flood risk listSN4 0ND: not on the flood risk listSN4 0NE: not on the flood risk listSN4 0NG: not on the flood risk listSN4 0NH: not on the flood risk listSN4 0NN: not on the flood risk listSN4 0NP: not on the flood risk listSN4 0NR: not on the flood risk listSN4 0NS: not on the flood risk listSN4 0NU: not on the flood risk listSN4 0NZ: not on the flood risk listSN4 0PA: not on the flood risk listSN4 0PB: not on the flood risk listSN4 0PE: not on the flood risk listSN4 0PH: not on the flood risk listSN4 0PP: not on the flood risk listSN4 0PR: not on the flood risk listSN4 0PY: not on the flood risk listSN4 0PZ: not on the flood risk listSN4 0QB: not on the flood risk listSN4 0QE: not on the flood risk listSN4 0QF: not on the flood risk listSN4 0QG: not on the flood risk listSN4 0QH: not on the flood risk listSN4 0QJ: not on the flood risk listSN4 0QL: not on the flood risk listSN4 0QN: not on the flood risk listSN4 0QQ: not on the flood risk listSN4 0QR: not on the flood risk listSN4 0QS: not on the flood risk listSN4 0QT: not on the flood risk listSN4 0QW: not on the flood risk listSN4 0QZ: not on the flood risk listSN4 0RD: not on the flood risk listSN4 0RG: not on the flood risk listSN4 0RH: not on the flood risk listSN4 0RJ: not on the flood risk listSN4 0RL: not on the flood risk listSN4 0RP: not on the flood risk listSN4 0RR: not on the flood risk listSN4 0RW: not on the flood risk listSN4 0RY: not on the flood risk listSN4 0RZ: not on the flood risk listSN4 0SH: not on the flood risk listSN4 0SQ: not on the flood risk listSN4 0SX: not on the flood risk listSN4 0TA: not on the flood risk listSN4 0TE: not on the flood risk listSN4 0TJ: not on the flood risk listSN4 0TQ: not on the flood risk listSN4 0TW: not on the flood risk listSN4 0UN: not on the flood risk listSN4 0AR: low flood risk at worstSN4 0SN: low flood risk at worstSN4 0RT: medium flood risk at worstSN4 0SA: medium flood risk at worstSN4 0AB: high flood riskSN4 0AU: high flood riskSN4 0HX: high flood riskSN4 0SW: high flood riskSN4 0UY: high flood risk SwindonRoyal Wootton BassettWroughtonChiseldonWanborough Map of every postcode in the SN4 0 sector, by flood risk Of the 254 postcodes in the SN4 0 sector that ONS places, 5 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 245 are not on the Environment Agency's at-risk list. Places named: Swindon, Royal Wootton Bassett, Wroughton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. A4361 SwindonRoyal Wootton BassettWroughton
  • A home or business at high risk: 5
  • At medium risk at worst: 2
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 245

Of the 254 postcodes in the SN4 0 sector that ONS places, 5 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 245 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.

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

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

SN4 0HX3 at high riskSN4 0SW3 at high riskSN4 0AB1 at high riskSN4 0AU1 at high riskSN4 0UY1 at high risk

What do homes sell for in SN4 0?

Homes in SN4 0 sold for a typical £405,000 in the 12 months to August 2026, across 80 sales, down 1.2% on the 12 months before, HM Land Registry's figures show.

£405,000 typical price, the 12 months to August 2026
£410,000 12 months to August 2025
▼ down 1.2% on the 12 months before
  • Detached £680,000 39 sales
  • Semi-detached £337,500 18 sales
  • Terraced £257,500 19 sales
  • Flat or maisonette 4 sales, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start SN4 0. 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 SN4 0

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.

SN4 0AASN4 0ABSN4 0ADSN4 0AESN4 0AFSN4 0AGSN4 0AHSN4 0AJSN4 0ALSN4 0ANSN4 0APSN4 0AQSN4 0ARSN4 0ASSN4 0ATSN4 0AUSN4 0AWSN4 0AXSN4 0AYSN4 0AZSN4 0BASN4 0BBSN4 0BDSN4 0BESN4 0BFSN4 0BGSN4 0BHSN4 0BJSN4 0BLSN4 0BNSN4 0BPSN4 0BQSN4 0BSSN4 0BTSN4 0BUSN4 0BWSN4 0BXSN4 0BYSN4 0BZSN4 0DASN4 0DBSN4 0DDSN4 0DESN4 0DFSN4 0DHSN4 0DJSN4 0DLSN4 0DNSN4 0DPSN4 0DQSN4 0DRSN4 0DSSN4 0DTSN4 0DUSN4 0DWSN4 0DXSN4 0DZSN4 0EBSN4 0EDSN4 0EFSN4 0EHSN4 0EJSN4 0ELSN4 0ENSN4 0EPSN4 0ERSN4 0ESSN4 0ETSN4 0EUSN4 0EWSN4 0EXSN4 0EYSN4 0EZSN4 0FASN4 0FBSN4 0FDSN4 0FESN4 0FFSN4 0FGSN4 0FHSN4 0FJSN4 0FLSN4 0FNSN4 0FPSN4 0FQSN4 0FRSN4 0FSSN4 0FTSN4 0FUSN4 0FWSN4 0FXSN4 0FYSN4 0FZSN4 0GASN4 0GBSN4 0GDSN4 0GESN4 0GFSN4 0GGSN4 0GHSN4 0GJSN4 0GLSN4 0GNSN4 0GPSN4 0GQSN4 0GRSN4 0HASN4 0HBSN4 0HDSN4 0HESN4 0HFSN4 0HGSN4 0HHSN4 0HJSN4 0HLSN4 0HNSN4 0HPSN4 0HQSN4 0HRSN4 0HSSN4 0HTSN4 0HUSN4 0HWSN4 0HXSN4 0HYSN4 0HZSN4 0JASN4 0JBSN4 0JDSN4 0JFSN4 0JGSN4 0JJSN4 0JLSN4 0JNSN4 0JPSN4 0JRSN4 0JSSN4 0JXSN4 0JYSN4 0JZSN4 0LBSN4 0LESN4 0LFSN4 0LHSN4 0LJSN4 0LLSN4 0LNSN4 0LPSN4 0LQSN4 0LRSN4 0LSSN4 0LTSN4 0LUSN4 0LWSN4 0LXSN4 0LYSN4 0LZSN4 0NASN4 0NBSN4 0NDSN4 0NESN4 0NFSN4 0NGSN4 0NHSN4 0NJSN4 0NLSN4 0NNSN4 0NPSN4 0NQSN4 0NRSN4 0NSSN4 0NTSN4 0NUSN4 0NWSN4 0NXSN4 0NYSN4 0NZSN4 0PASN4 0PBSN4 0PDSN4 0PESN4 0PFSN4 0PGSN4 0PHSN4 0PJSN4 0PLSN4 0PNSN4 0PPSN4 0PQSN4 0PRSN4 0PTSN4 0PUSN4 0PWSN4 0PYSN4 0PZSN4 0QBSN4 0QESN4 0QFSN4 0QGSN4 0QHSN4 0QJSN4 0QLSN4 0QNSN4 0QQSN4 0QRSN4 0QSSN4 0QTSN4 0QUSN4 0QWSN4 0QZSN4 0RDSN4 0RFSN4 0RGSN4 0RHSN4 0RJSN4 0RLSN4 0RNSN4 0RPSN4 0RQSN4 0RRSN4 0RSSN4 0RTSN4 0RUSN4 0RWSN4 0RXSN4 0RYSN4 0RZSN4 0SASN4 0SBSN4 0SDSN4 0SESN4 0SHSN4 0SJSN4 0SNSN4 0SQSN4 0SWSN4 0SXSN4 0TASN4 0TDSN4 0TESN4 0TGSN4 0THSN4 0TJSN4 0TNSN4 0TPSN4 0TQSN4 0TRSN4 0TSSN4 0TTSN4 0TWSN4 0UJSN4 0UNSN4 0UTSN4 0UY

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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