SN3 5 postcode sector in the SN3 district

SN3 5 is a sector of the SN3 district: every postcode that starts SN3 5. It has 112 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 SN3 5 sector, by flood risk

Map of every postcode in the SN3 5 sector, by flood risk Of the 112 postcodes in the SN3 5 sector that ONS places, 4 have a home or business at high risk, 5 are at medium risk at worst, 38 are at low risk at worst and 65 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Covingham & Nythe, Badbury Park, Eldene & Liden. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A419 SN3 5AN: not on the flood risk listSN3 5AP: not on the flood risk listSN3 5AR: not on the flood risk listSN3 5AS: not on the flood risk listSN3 5AT: not on the flood risk listSN3 5AU: not on the flood risk listSN3 5AW: not on the flood risk listSN3 5AX: not on the flood risk listSN3 5AY: not on the flood risk listSN3 5AZ: not on the flood risk listSN3 5BA: not on the flood risk listSN3 5BB: not on the flood risk listSN3 5BD: not on the flood risk listSN3 5BE: not on the flood risk listSN3 5BG: not on the flood risk listSN3 5BN: not on the flood risk listSN3 5BP: not on the flood risk listSN3 5BS: not on the flood risk listSN3 5BT: not on the flood risk listSN3 5BU: not on the flood risk listSN3 5BW: not on the flood risk listSN3 5BX: not on the flood risk listSN3 5BY: not on the flood risk listSN3 5BZ: not on the flood risk listSN3 5DB: not on the flood risk listSN3 5DD: not on the flood risk listSN3 5DE: not on the flood risk listSN3 5DF: not on the flood risk listSN3 5DG: not on the flood risk listSN3 5DH: not on the flood risk listSN3 5DJ: not on the flood risk listSN3 5DL: not on the flood risk listSN3 5DQ: not on the flood risk listSN3 5DY: not on the flood risk listSN3 5ED: not on the flood risk listSN3 5EE: not on the flood risk listSN3 5EN: not on the flood risk listSN3 5ER: not on the flood risk listSN3 5ES: not on the flood risk listSN3 5EW: not on the flood risk listSN3 5EX: not on the flood risk listSN3 5EY: not on the flood risk listSN3 5EZ: not on the flood risk listSN3 5FA: not on the flood risk listSN3 5FB: not on the flood risk listSN3 5FD: not on the flood risk listSN3 5HE: not on the flood risk listSN3 5HF: not on the flood risk listSN3 5HH: not on the flood risk listSN3 5HX: not on the flood risk listSN3 5HY: not on the flood risk listSN3 5JF: not on the flood risk listSN3 5JH: not on the flood risk listSN3 5JX: not on the flood risk listSN3 5JY: not on the flood risk listSN3 5LP: not on the flood risk listSN3 5PA: not on the flood risk listSN3 5TG: not on the flood risk listSN3 5AE: low flood risk at worstSN3 5AF: low flood risk at worstSN3 5AL: low flood risk at worstSN3 5BJ: low flood risk at worstSN3 5DA: low flood risk at worstSN3 5DN: low flood risk at worstSN3 5DP: low flood risk at worstSN3 5DR: low flood risk at worstSN3 5DS: low flood risk at worstSN3 5DT: low flood risk at worstSN3 5DU: low flood risk at worstSN3 5DW: low flood risk at worstSN3 5DX: low flood risk at worstSN3 5DZ: low flood risk at worstSN3 5EA: low flood risk at worstSN3 5EB: low flood risk at worstSN3 5EF: low flood risk at worstSN3 5EG: low flood risk at worstSN3 5EH: low flood risk at worstSN3 5EJ: low flood risk at worstSN3 5EL: low flood risk at worstSN3 5EP: low flood risk at worstSN3 5EQ: low flood risk at worstSN3 5ET: low flood risk at worstSN3 5EU: low flood risk at worstSN3 5HP: low flood risk at worstSN3 5HQ: low flood risk at worstSN3 5HR: low flood risk at worstSN3 5HT: low flood risk at worstSN3 5JG: low flood risk at worstSN3 5JQ: low flood risk at worstSN3 5LB: low flood risk at worstSN3 5LD: low flood risk at worstSN3 5LJ: low flood risk at worstSN3 5LL: low flood risk at worstSN3 5LN: low flood risk at worstSN3 5LS: low flood risk at worstSN3 5LW: low flood risk at worstSN3 5AJ: medium flood risk at worstSN3 5AQ: medium flood risk at worstSN3 5BH: medium flood risk at worstSN3 5BL: medium flood risk at worstSN3 5BQ: medium flood risk at worstSN3 5AA: high flood riskSN3 5AD: high flood riskSN3 5AG: high flood riskSN3 5AH: high flood risk Covingham & NytheBadbury Park, Eldene & Liden 5 postcodes at high or medium risk, outlined: this goes to SN3 5AH, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the SN3 5 sector, by flood risk Of the 112 postcodes in the SN3 5 sector that ONS places, 4 have a home or business at high risk, 5 are at medium risk at worst, 38 are at low risk at worst and 65 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Covingham & Nythe, Badbury Park, Eldene & Liden. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A419 Covingham & NytheBadbury Park, Eldene & Liden
  • A home or business at high risk: 4
  • At medium risk at worst: 5
  • At low risk at worst: 38
  • At very low risk only: 0
  • Not on the at-risk list: 65
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 112 postcodes in the SN3 5 sector that ONS places, 4 have a home or business at high risk, 5 are at medium risk at worst, 38 are at low risk at worst and 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. A dashed outline shows where 5 or more lie within 160 metres of each other. It is not a boundary, and 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

The postcodes at high risk

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

SN3 5AA13 at high riskSN3 5AH1 at high riskSN3 5AD1 at high riskSN3 5AG1 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. SN3 5AH, is the one with most homes and businesses at high risk.

What do homes sell for in SN3 5?

Homes in SN3 5 sold for a typical £285,000 in the 12 months to August 2026, across 77 sales, down 6.6% on the 12 months before, HM Land Registry's figures show.

£285,000 typical price, the 12 months to August 2026
£305,000 12 months to August 2025
▼ down 6.6% on the 12 months before
  • Detached £415,000 7 sales
  • Semi-detached £321,250 30 sales
  • Terraced £250,000 37 sales
  • Flat or maisonette 3 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 SN3 5. 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 SN3 5

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.

SN3 5AASN3 5ADSN3 5AESN3 5AFSN3 5AGSN3 5AHSN3 5AJSN3 5ALSN3 5ANSN3 5APSN3 5AQSN3 5ARSN3 5ASSN3 5ATSN3 5AUSN3 5AWSN3 5AXSN3 5AYSN3 5AZSN3 5BASN3 5BBSN3 5BDSN3 5BESN3 5BGSN3 5BHSN3 5BJSN3 5BLSN3 5BNSN3 5BPSN3 5BQSN3 5BSSN3 5BTSN3 5BUSN3 5BWSN3 5BXSN3 5BYSN3 5BZSN3 5DASN3 5DBSN3 5DDSN3 5DESN3 5DFSN3 5DGSN3 5DHSN3 5DJSN3 5DLSN3 5DNSN3 5DPSN3 5DQSN3 5DRSN3 5DSSN3 5DTSN3 5DUSN3 5DWSN3 5DXSN3 5DYSN3 5DZSN3 5EASN3 5EBSN3 5EDSN3 5EESN3 5EFSN3 5EGSN3 5EHSN3 5EJSN3 5ELSN3 5ENSN3 5EPSN3 5EQSN3 5ERSN3 5ESSN3 5ETSN3 5EUSN3 5EWSN3 5EXSN3 5EYSN3 5EZSN3 5FASN3 5FBSN3 5FDSN3 5HESN3 5HFSN3 5HGSN3 5HHSN3 5HPSN3 5HQSN3 5HRSN3 5HTSN3 5HXSN3 5HYSN3 5JFSN3 5JGSN3 5JHSN3 5JNSN3 5JQSN3 5JUSN3 5JXSN3 5JYSN3 5LBSN3 5LDSN3 5LJSN3 5LLSN3 5LNSN3 5LPSN3 5LSSN3 5LWSN3 5PASN3 5TGSN3 5TQSN3 5UUSN3 5WBSN3 5XX

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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