SG4 7 postcode sector in the SG4 district

SG4 7 is a sector of the SG4 district: every postcode that starts SG4 7. It has 209 postcodes in use, 2 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 SG4 7 sector, by flood risk

Map of every postcode in the SG4 7 sector, by flood risk Of the 209 postcodes in the SG4 7 sector that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 4 are at low risk at worst and 195 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: Stevenage, Hitchin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A602A1(M)A505A600 SG4 7AA: not on the flood risk listSG4 7AB: not on the flood risk listSG4 7AE: not on the flood risk listSG4 7AG: not on the flood risk listSG4 7AH: not on the flood risk listSG4 7AJ: not on the flood risk listSG4 7AL: not on the flood risk listSG4 7AP: not on the flood risk listSG4 7AQ: not on the flood risk listSG4 7AR: not on the flood risk listSG4 7AS: not on the flood risk listSG4 7AU: not on the flood risk listSG4 7AW: not on the flood risk listSG4 7AX: not on the flood risk listSG4 7AY: not on the flood risk listSG4 7AZ: not on the flood risk listSG4 7BA: not on the flood risk listSG4 7BB: not on the flood risk listSG4 7BD: not on the flood risk listSG4 7BF: not on the flood risk listSG4 7BG: not on the flood risk listSG4 7BH: not on the flood risk listSG4 7BJ: not on the flood risk listSG4 7BL: not on the flood risk listSG4 7BN: not on the flood risk listSG4 7BS: not on the flood risk listSG4 7BT: not on the flood risk listSG4 7BU: not on the flood risk listSG4 7BW: not on the flood risk listSG4 7BX: not on the flood risk listSG4 7BZ: not on the flood risk listSG4 7DG: not on the flood risk listSG4 7DJ: not on the flood risk listSG4 7DL: not on the flood risk listSG4 7DN: not on the flood risk listSG4 7DQ: not on the flood risk listSG4 7DR: not on the flood risk listSG4 7DS: not on the flood risk listSG4 7DT: not on the flood risk listSG4 7DU: not on the flood risk listSG4 7DW: not on the flood risk listSG4 7DX: not on the flood risk listSG4 7DY: not on the flood risk listSG4 7DZ: not on the flood risk listSG4 7EA: not on the flood risk listSG4 7EB: not on the flood risk listSG4 7ED: not on the flood risk listSG4 7EE: not on the flood risk listSG4 7EG: not on the flood risk listSG4 7EH: not on the flood risk listSG4 7EJ: not on the flood risk listSG4 7EP: not on the flood risk listSG4 7EQ: not on the flood risk listSG4 7ER: not on the flood risk listSG4 7ES: not on the flood risk listSG4 7ET: not on the flood risk listSG4 7EW: not on the flood risk listSG4 7EX: not on the flood risk listSG4 7EY: not on the flood risk listSG4 7EZ: not on the flood risk listSG4 7FA: not on the flood risk listSG4 7FB: not on the flood risk listSG4 7HA: not on the flood risk listSG4 7HD: not on the flood risk listSG4 7HE: not on the flood risk listSG4 7HG: not on the flood risk listSG4 7HH: not on the flood risk listSG4 7HJ: not on the flood risk listSG4 7HL: not on the flood risk listSG4 7HN: not on the flood risk listSG4 7HP: not on the flood risk listSG4 7HT: not on the flood risk listSG4 7HU: not on the flood risk listSG4 7HW: not on the flood risk listSG4 7JB: not on the flood risk listSG4 7JD: not on the flood risk listSG4 7JE: not on the flood risk listSG4 7JG: not on the flood risk listSG4 7JJ: not on the flood risk listSG4 7JL: not on the flood risk listSG4 7JN: not on the flood risk listSG4 7JP: not on the flood risk listSG4 7JR: not on the flood risk listSG4 7JT: not on the flood risk listSG4 7LD: not on the flood risk listSG4 7LE: not on the flood risk listSG4 7LH: not on the flood risk listSG4 7LJ: not on the flood risk listSG4 7LN: not on the flood risk listSG4 7LP: not on the flood risk listSG4 7LS: not on the flood risk listSG4 7LU: not on the flood risk listSG4 7NF: not on the flood risk listSG4 7NG: not on the flood risk listSG4 7NH: not on the flood risk listSG4 7NJ: not on the flood risk listSG4 7NL: not on the flood risk listSG4 7NN: not on the flood risk listSG4 7NQ: not on the flood risk listSG4 7NR: not on the flood risk listSG4 7NS: not on the flood risk listSG4 7NT: not on the flood risk listSG4 7NZ: not on the flood risk listSG4 7PA: not on the flood risk listSG4 7PB: not on the flood risk listSG4 7PD: not on the flood risk listSG4 7PE: not on the flood risk listSG4 7PG: not on the flood risk listSG4 7PH: not on the flood risk listSG4 7PL: not on the flood risk listSG4 7PP: not on the flood risk listSG4 7PS: not on the flood risk listSG4 7PT: not on the flood risk listSG4 7PW: not on the flood risk listSG4 7QA: not on the flood risk listSG4 7QB: not on the flood risk listSG4 7QE: not on the flood risk listSG4 7QG: not on the flood risk listSG4 7QJ: not on the flood risk listSG4 7QL: not on the flood risk listSG4 7QP: not on the flood risk listSG4 7QR: not on the flood risk listSG4 7QS: not on the flood risk listSG4 7QT: not on the flood risk listSG4 7QU: not on the flood risk listSG4 7QZ: not on the flood risk listSG4 7RA: not on the flood risk listSG4 7RB: not on the flood risk listSG4 7RD: not on the flood risk listSG4 7RG: not on the flood risk listSG4 7RH: not on the flood risk listSG4 7RJ: not on the flood risk listSG4 7RL: not on the flood risk listSG4 7RN: not on the flood risk listSG4 7RQ: not on the flood risk listSG4 7RS: not on the flood risk listSG4 7RU: not on the flood risk listSG4 7RW: not on the flood risk listSG4 7RX: not on the flood risk listSG4 7RY: not on the flood risk listSG4 7RZ: not on the flood risk listSG4 7SA: not on the flood risk listSG4 7SB: not on the flood risk listSG4 7SJ: not on the flood risk listSG4 7SL: not on the flood risk listSG4 7SN: not on the flood risk listSG4 7SP: not on the flood risk listSG4 7SR: not on the flood risk listSG4 7SS: not on the flood risk listSG4 7SW: not on the flood risk listSG4 7TB: not on the flood risk listSG4 7TD: not on the flood risk listSG4 7TE: not on the flood risk listSG4 7TH: not on the flood risk listSG4 7TP: not on the flood risk listSG4 7TR: not on the flood risk listSG4 7TS: not on the flood risk listSG4 7TT: not on the flood risk listSG4 7TU: not on the flood risk listSG4 7TY: not on the flood risk listSG4 7TZ: not on the flood risk listSG4 7UA: not on the flood risk listSG4 7UB: not on the flood risk listSG4 7UD: not on the flood risk listSG4 7UE: not on the flood risk listSG4 7UF: not on the flood risk listSG4 7UH: not on the flood risk listSG4 7UJ: not on the flood risk listSG4 7UQ: not on the flood risk listSG4 7UW: not on the flood risk listSG4 7WH: not on the flood risk listSG4 7LG: low flood risk at worstSG4 7NE: low flood risk at worstSG4 7PQ: low flood risk at worstSG4 7HY: medium flood risk at worstSG4 7JY: medium flood risk at worstSG4 7LT: medium flood risk at worstSG4 7BQ: high flood riskSG4 7DP: high flood riskSG4 7LA: high flood riskSG4 7LR: high flood riskSG4 7LY: high flood riskSG4 7NP: high flood riskSG4 7NU: high flood risk StevenageHitchin 5 postcodes at high or medium risk, outlined: this goes to SG4 7LR, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the SG4 7 sector, by flood risk Of the 209 postcodes in the SG4 7 sector that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 4 are at low risk at worst and 195 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: Stevenage, Hitchin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1(M) StevenageHitchin
  • A home or business at high risk: 7
  • At medium risk at worst: 3
  • At low risk at worst: 4
  • At very low risk only: 0
  • Not on the at-risk list: 195
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 209 postcodes in the SG4 7 sector that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 4 are at low risk at worst and 195 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 250 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.

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.

SG4 7LR10 at high riskSG4 7LY5 at high riskSG4 7BQ2 at high riskSG4 7NP2 at high riskSG4 7NU2 at high riskSG4 7LA1 at high riskSG4 7DP1 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. SG4 7LR, is the one with most homes and businesses at high risk.

What do homes sell for in SG4 7?

Homes in SG4 7 sold for a typical £661,750 in the 12 months to August 2026, across 52 sales, up 7.4% on the 12 months before, HM Land Registry's figures show.

£661,750 typical price, the 12 months to August 2026
£616,250 12 months to August 2025
▲ up 7.4% on the 12 months before
  • Detached £955,000 25 sales
  • Semi-detached £438,000 13 sales
  • Terraced £400,000 9 sales
  • Flat or maisonette £590,000 5 sales

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 SG4 7. 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 SG4 7

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.

SG4 7AASG4 7ABSG4 7ADSG4 7AESG4 7AGSG4 7AHSG4 7AJSG4 7ALSG4 7APSG4 7AQSG4 7ARSG4 7ASSG4 7AUSG4 7AWSG4 7AXSG4 7AYSG4 7AZSG4 7BASG4 7BBSG4 7BDSG4 7BESG4 7BFSG4 7BGSG4 7BHSG4 7BJSG4 7BLSG4 7BNSG4 7BQSG4 7BSSG4 7BTSG4 7BUSG4 7BWSG4 7BXSG4 7BYSG4 7BZSG4 7DASG4 7DBSG4 7DDSG4 7DESG4 7DGSG4 7DHSG4 7DJSG4 7DLSG4 7DNSG4 7DPSG4 7DQSG4 7DRSG4 7DSSG4 7DTSG4 7DUSG4 7DWSG4 7DXSG4 7DYSG4 7DZSG4 7EASG4 7EBSG4 7EDSG4 7EESG4 7EGSG4 7EHSG4 7EJSG4 7ELSG4 7ENSG4 7EPSG4 7EQSG4 7ERSG4 7ESSG4 7ETSG4 7EUSG4 7EWSG4 7EXSG4 7EYSG4 7EZSG4 7FASG4 7FBSG4 7HASG4 7HDSG4 7HESG4 7HGSG4 7HHSG4 7HJSG4 7HLSG4 7HNSG4 7HPSG4 7HTSG4 7HUSG4 7HWSG4 7HXSG4 7HYSG4 7JASG4 7JBSG4 7JDSG4 7JESG4 7JGSG4 7JJSG4 7JLSG4 7JNSG4 7JPSG4 7JRSG4 7JTSG4 7JXSG4 7JYSG4 7LASG4 7LBSG4 7LDSG4 7LESG4 7LGSG4 7LHSG4 7LJSG4 7LNSG4 7LPSG4 7LRSG4 7LSSG4 7LTSG4 7LUSG4 7LYSG4 7NESG4 7NFSG4 7NGSG4 7NHSG4 7NJSG4 7NLSG4 7NNSG4 7NPSG4 7NQSG4 7NRSG4 7NSSG4 7NTSG4 7NUSG4 7NZSG4 7PASG4 7PBSG4 7PDSG4 7PESG4 7PFSG4 7PGSG4 7PHSG4 7PJSG4 7PLSG4 7PNSG4 7PPSG4 7PQSG4 7PSSG4 7PTSG4 7PWSG4 7QASG4 7QBSG4 7QDSG4 7QESG4 7QGSG4 7QHSG4 7QJSG4 7QLSG4 7QPSG4 7QQSG4 7QRSG4 7QSSG4 7QTSG4 7QUSG4 7QZSG4 7RASG4 7RBSG4 7RDSG4 7RESG4 7RGSG4 7RHSG4 7RJSG4 7RLSG4 7RNSG4 7RQSG4 7RSSG4 7RUSG4 7RWSG4 7RXSG4 7RYSG4 7RZSG4 7SASG4 7SBSG4 7SJSG4 7SLSG4 7SNSG4 7SPSG4 7SRSG4 7SSSG4 7STSG4 7SWSG4 7TBSG4 7TDSG4 7TESG4 7THSG4 7TPSG4 7TRSG4 7TSSG4 7TTSG4 7TUSG4 7TXSG4 7TYSG4 7TZSG4 7UASG4 7UBSG4 7UDSG4 7UESG4 7UFSG4 7UHSG4 7UJSG4 7UQSG4 7UWSG4 7WHSG4 7WT

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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