SG5 1 postcode sector in the SG5 district

SG5 1 is a sector of the SG5 district: every postcode that starts SG5 1. It has 202 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 SG5 1 sector, by flood risk

Map of every postcode in the SG5 1 sector, by flood risk Of the 202 postcodes in the SG5 1 sector that ONS places, 8 have a home or business at high risk, 2 are at medium risk at worst, 8 are at low risk at worst and 184 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 8 postcodes at high or medium risk. Places named: Hitchin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A505A602 SG5 1AB: not on the flood risk listSG5 1AD: not on the flood risk listSG5 1AF: not on the flood risk listSG5 1AG: not on the flood risk listSG5 1AP: not on the flood risk listSG5 1AR: not on the flood risk listSG5 1AT: not on the flood risk listSG5 1AU: not on the flood risk listSG5 1AZ: not on the flood risk listSG5 1BB: not on the flood risk listSG5 1BG: not on the flood risk listSG5 1BH: not on the flood risk listSG5 1BQ: not on the flood risk listSG5 1BS: not on the flood risk listSG5 1BT: not on the flood risk listSG5 1BY: not on the flood risk listSG5 1DB: not on the flood risk listSG5 1DG: not on the flood risk listSG5 1DJ: not on the flood risk listSG5 1DL: not on the flood risk listSG5 1DR: not on the flood risk listSG5 1DS: not on the flood risk listSG5 1DT: not on the flood risk listSG5 1DU: not on the flood risk listSG5 1DW: not on the flood risk listSG5 1DX: not on the flood risk listSG5 1DY: not on the flood risk listSG5 1ED: not on the flood risk listSG5 1EE: not on the flood risk listSG5 1EG: not on the flood risk listSG5 1EH: not on the flood risk listSG5 1EJ: not on the flood risk listSG5 1EN: not on the flood risk listSG5 1EP: not on the flood risk listSG5 1ET: not on the flood risk listSG5 1EW: not on the flood risk listSG5 1EX: not on the flood risk listSG5 1EY: not on the flood risk listSG5 1EZ: not on the flood risk listSG5 1FU: not on the flood risk listSG5 1GB: not on the flood risk listSG5 1GE: not on the flood risk listSG5 1HA: not on the flood risk listSG5 1HB: not on the flood risk listSG5 1HD: not on the flood risk listSG5 1HF: not on the flood risk listSG5 1HP: not on the flood risk listSG5 1HR: not on the flood risk listSG5 1HS: not on the flood risk listSG5 1HX: not on the flood risk listSG5 1JA: not on the flood risk listSG5 1JB: not on the flood risk listSG5 1JD: not on the flood risk listSG5 1JE: not on the flood risk listSG5 1JJ: not on the flood risk listSG5 1JN: not on the flood risk listSG5 1JQ: not on the flood risk listSG5 1JW: not on the flood risk listSG5 1JX: not on the flood risk listSG5 1LA: not on the flood risk listSG5 1LE: not on the flood risk listSG5 1LF: not on the flood risk listSG5 1LH: not on the flood risk listSG5 1LJ: not on the flood risk listSG5 1LN: not on the flood risk listSG5 1LS: not on the flood risk listSG5 1LT: not on the flood risk listSG5 1NB: not on the flood risk listSG5 1ND: not on the flood risk listSG5 1NF: not on the flood risk listSG5 1NG: not on the flood risk listSG5 1NJ: not on the flood risk listSG5 1NL: not on the flood risk listSG5 1NN: not on the flood risk listSG5 1NQ: not on the flood risk listSG5 1NR: not on the flood risk listSG5 1NS: not on the flood risk listSG5 1NU: not on the flood risk listSG5 1NW: not on the flood risk listSG5 1NZ: not on the flood risk listSG5 1PA: not on the flood risk listSG5 1PB: not on the flood risk listSG5 1PD: not on the flood risk listSG5 1PE: not on the flood risk listSG5 1PF: not on the flood risk listSG5 1PG: not on the flood risk listSG5 1PH: not on the flood risk listSG5 1PJ: not on the flood risk listSG5 1PN: not on the flood risk listSG5 1PP: not on the flood risk listSG5 1PR: not on the flood risk listSG5 1PS: not on the flood risk listSG5 1PT: not on the flood risk listSG5 1PU: not on the flood risk listSG5 1PW: not on the flood risk listSG5 1PX: not on the flood risk listSG5 1PY: not on the flood risk listSG5 1PZ: not on the flood risk listSG5 1QA: not on the flood risk listSG5 1QB: not on the flood risk listSG5 1QD: not on the flood risk listSG5 1QE: not on the flood risk listSG5 1QF: not on the flood risk listSG5 1QG: not on the flood risk listSG5 1QH: not on the flood risk listSG5 1QJ: not on the flood risk listSG5 1QL: not on the flood risk listSG5 1QN: not on the flood risk listSG5 1QP: not on the flood risk listSG5 1QQ: not on the flood risk listSG5 1QS: not on the flood risk listSG5 1QX: not on the flood risk listSG5 1RA: not on the flood risk listSG5 1RD: not on the flood risk listSG5 1RE: not on the flood risk listSG5 1RH: not on the flood risk listSG5 1RL: not on the flood risk listSG5 1RN: not on the flood risk listSG5 1RP: not on the flood risk listSG5 1RQ: not on the flood risk listSG5 1RS: not on the flood risk listSG5 1RW: not on the flood risk listSG5 1RX: not on the flood risk listSG5 1RY: not on the flood risk listSG5 1RZ: not on the flood risk listSG5 1SD: not on the flood risk listSG5 1SH: not on the flood risk listSG5 1SJ: not on the flood risk listSG5 1SL: not on the flood risk listSG5 1SN: not on the flood risk listSG5 1SP: not on the flood risk listSG5 1SR: not on the flood risk listSG5 1SS: not on the flood risk listSG5 1ST: not on the flood risk listSG5 1SU: not on the flood risk listSG5 1SW: not on the flood risk listSG5 1SX: not on the flood risk listSG5 1SY: not on the flood risk listSG5 1TA: not on the flood risk listSG5 1TB: not on the flood risk listSG5 1TD: not on the flood risk listSG5 1TE: not on the flood risk listSG5 1TF: not on the flood risk listSG5 1TJ: not on the flood risk listSG5 1TL: not on the flood risk listSG5 1TP: not on the flood risk listSG5 1TR: not on the flood risk listSG5 1TS: not on the flood risk listSG5 1TT: not on the flood risk listSG5 1TW: not on the flood risk listSG5 1TX: not on the flood risk listSG5 1TY: not on the flood risk listSG5 1TZ: not on the flood risk listSG5 1UA: not on the flood risk listSG5 1UB: not on the flood risk listSG5 1UD: not on the flood risk listSG5 1UE: not on the flood risk listSG5 1UF: not on the flood risk listSG5 1UG: not on the flood risk listSG5 1UJ: not on the flood risk listSG5 1UL: not on the flood risk listSG5 1UN: not on the flood risk listSG5 1UP: not on the flood risk listSG5 1UR: not on the flood risk listSG5 1UT: not on the flood risk listSG5 1WX: not on the flood risk listSG5 1XA: not on the flood risk listSG5 1XB: not on the flood risk listSG5 1XD: not on the flood risk listSG5 1XE: not on the flood risk listSG5 1XF: not on the flood risk listSG5 1XG: not on the flood risk listSG5 1XH: not on the flood risk listSG5 1XJ: not on the flood risk listSG5 1XL: not on the flood risk listSG5 1XQ: not on the flood risk listSG5 1XR: not on the flood risk listSG5 1XS: not on the flood risk listSG5 1XT: not on the flood risk listSG5 1XZ: not on the flood risk listSG5 1YA: not on the flood risk listSG5 1YB: not on the flood risk listSG5 1YD: not on the flood risk listSG5 1AE: low flood risk at worstSG5 1AH: low flood risk at worstSG5 1DA: low flood risk at worstSG5 1DN: low flood risk at worstSG5 1GW: low flood risk at worstSG5 1RG: low flood risk at worstSG5 1RT: low flood risk at worstSG5 1SF: low flood risk at worstSG5 1QT: medium flood risk at worstSG5 1SG: medium flood risk at worstSG5 1EU: high flood riskSG5 1PQ: high flood riskSG5 1QU: high flood riskSG5 1QW: high flood riskSG5 1QZ: high flood riskSG5 1RB: high flood riskSG5 1SE: high flood riskSG5 1SQ: high flood risk Hitchin 8 postcodes at high or medium risk, outlined: this goes to SG5 1SE, the one with most homes and businesses at high risk8 postcodes at high or medium risk Map of every postcode in the SG5 1 sector, by flood risk Of the 202 postcodes in the SG5 1 sector that ONS places, 8 have a home or business at high risk, 2 are at medium risk at worst, 8 are at low risk at worst and 184 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 8 postcodes at high or medium risk. Places named: Hitchin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A505 Hitchin
  • A home or business at high risk: 8
  • At medium risk at worst: 2
  • At low risk at worst: 8
  • At very low risk only: 0
  • Not on the at-risk list: 184
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 202 postcodes in the SG5 1 sector that ONS places, 8 have a home or business at high risk, 2 are at medium risk at worst, 8 are at low risk at worst and 184 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 150 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.

SG5 1SE8 at high riskSG5 1QZ4 at high riskSG5 1PQ3 at high riskSG5 1QW3 at high riskSG5 1RB2 at high riskSG5 1EU1 at high riskSG5 1QU1 at high riskSG5 1SQ1 at high risk

Where the postcodes at high or medium risk lie together

  • 8 postcodes at high or medium risk, outlined on the map. SG5 1SE, is the one with most homes and businesses at high risk.

What do homes sell for in SG5 1?

Homes in SG5 1 sold for a typical £433,283 in the 12 months to August 2026, across 104 sales, down 5.1% on the 12 months before, HM Land Registry's figures show.

£433,283 typical price, the 12 months to August 2026
£456,500 12 months to August 2025
▼ down 5.1% on the 12 months before
  • Detached £827,500 6 sales
  • Semi-detached £625,000 27 sales
  • Terraced £517,750 26 sales
  • Flat or maisonette £217,500 45 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 SG5 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 SG5 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.

SG5 1ABSG5 1ADSG5 1AESG5 1AFSG5 1AGSG5 1AHSG5 1APSG5 1ARSG5 1ATSG5 1AUSG5 1AZSG5 1BBSG5 1BGSG5 1BHSG5 1BQSG5 1BSSG5 1BTSG5 1BYSG5 1DASG5 1DBSG5 1DGSG5 1DJSG5 1DLSG5 1DNSG5 1DRSG5 1DSSG5 1DTSG5 1DUSG5 1DWSG5 1DXSG5 1DYSG5 1EDSG5 1EESG5 1EGSG5 1EHSG5 1EJSG5 1ENSG5 1EPSG5 1ETSG5 1EUSG5 1EWSG5 1EXSG5 1EYSG5 1EZSG5 1FUSG5 1GBSG5 1GESG5 1GWSG5 1HASG5 1HBSG5 1HDSG5 1HFSG5 1HPSG5 1HRSG5 1HSSG5 1HXSG5 1JASG5 1JBSG5 1JDSG5 1JESG5 1JJSG5 1JNSG5 1JQSG5 1JWSG5 1JXSG5 1LASG5 1LESG5 1LFSG5 1LHSG5 1LJSG5 1LLSG5 1LNSG5 1LSSG5 1LTSG5 1NBSG5 1NDSG5 1NFSG5 1NGSG5 1NJSG5 1NLSG5 1NNSG5 1NQSG5 1NRSG5 1NSSG5 1NUSG5 1NWSG5 1NZSG5 1PASG5 1PBSG5 1PDSG5 1PESG5 1PFSG5 1PGSG5 1PHSG5 1PJSG5 1PNSG5 1PPSG5 1PQSG5 1PRSG5 1PSSG5 1PTSG5 1PUSG5 1PWSG5 1PXSG5 1PYSG5 1PZSG5 1QASG5 1QBSG5 1QDSG5 1QESG5 1QFSG5 1QGSG5 1QHSG5 1QJSG5 1QLSG5 1QNSG5 1QPSG5 1QQSG5 1QSSG5 1QTSG5 1QUSG5 1QWSG5 1QXSG5 1QZSG5 1RASG5 1RBSG5 1RDSG5 1RESG5 1RGSG5 1RHSG5 1RLSG5 1RNSG5 1RPSG5 1RQSG5 1RSSG5 1RTSG5 1RWSG5 1RXSG5 1RYSG5 1RZSG5 1SDSG5 1SESG5 1SFSG5 1SGSG5 1SHSG5 1SJSG5 1SLSG5 1SNSG5 1SPSG5 1SQSG5 1SRSG5 1SSSG5 1STSG5 1SUSG5 1SWSG5 1SXSG5 1SYSG5 1TASG5 1TBSG5 1TDSG5 1TESG5 1TFSG5 1TJSG5 1TLSG5 1TPSG5 1TRSG5 1TSSG5 1TTSG5 1TWSG5 1TXSG5 1TYSG5 1TZSG5 1UASG5 1UBSG5 1UDSG5 1UESG5 1UFSG5 1UGSG5 1UJSG5 1ULSG5 1UNSG5 1UPSG5 1URSG5 1UTSG5 1WXSG5 1XASG5 1XBSG5 1XDSG5 1XESG5 1XFSG5 1XGSG5 1XHSG5 1XJSG5 1XLSG5 1XQSG5 1XRSG5 1XSSG5 1XTSG5 1XZSG5 1YASG5 1YBSG5 1YD

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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