GL51 9 postcode sector in the GL51 district

GL51 9 is a sector of the GL51 district: every postcode that starts GL51 9. It has 227 postcodes in use, 4 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 GL51 9 sector, by flood risk

Map of every postcode in the GL51 9 sector, by flood risk Of the 227 postcodes in the GL51 9 sector that ONS places, 13 have a home or business at high risk, 4 are at medium risk at worst, 14 are at low risk at worst, 2 are at very low risk only and 194 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: Swindon Village, St Paul's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M5A4019 GL51 9AB: not on the flood risk listGL51 9AD: not on the flood risk listGL51 9AJ: not on the flood risk listGL51 9AR: not on the flood risk listGL51 9AS: not on the flood risk listGL51 9AT: not on the flood risk listGL51 9AU: not on the flood risk listGL51 9AX: not on the flood risk listGL51 9AY: not on the flood risk listGL51 9AZ: not on the flood risk listGL51 9BA: not on the flood risk listGL51 9BB: not on the flood risk listGL51 9BD: not on the flood risk listGL51 9BE: not on the flood risk listGL51 9BH: not on the flood risk listGL51 9BN: not on the flood risk listGL51 9BS: not on the flood risk listGL51 9BT: not on the flood risk listGL51 9BU: not on the flood risk listGL51 9BX: not on the flood risk listGL51 9BY: not on the flood risk listGL51 9BZ: not on the flood risk listGL51 9DD: not on the flood risk listGL51 9DE: not on the flood risk listGL51 9DF: not on the flood risk listGL51 9DG: not on the flood risk listGL51 9DH: not on the flood risk listGL51 9DJ: not on the flood risk listGL51 9DL: not on the flood risk listGL51 9DP: not on the flood risk listGL51 9DQ: not on the flood risk listGL51 9DR: not on the flood risk listGL51 9DT: not on the flood risk listGL51 9DU: not on the flood risk listGL51 9DW: not on the flood risk listGL51 9DY: not on the flood risk listGL51 9DZ: not on the flood risk listGL51 9EA: not on the flood risk listGL51 9EB: not on the flood risk listGL51 9ED: not on the flood risk listGL51 9EE: not on the flood risk listGL51 9EF: not on the flood risk listGL51 9EG: not on the flood risk listGL51 9EH: not on the flood risk listGL51 9EJ: not on the flood risk listGL51 9EQ: not on the flood risk listGL51 9ER: not on the flood risk listGL51 9ES: not on the flood risk listGL51 9EU: not on the flood risk listGL51 9EW: not on the flood risk listGL51 9EY: not on the flood risk listGL51 9EZ: not on the flood risk listGL51 9FA: not on the flood risk listGL51 9FD: not on the flood risk listGL51 9FE: not on the flood risk listGL51 9FH: not on the flood risk listGL51 9FJ: not on the flood risk listGL51 9FP: not on the flood risk listGL51 9FQ: not on the flood risk listGL51 9FR: not on the flood risk listGL51 9FS: not on the flood risk listGL51 9FT: not on the flood risk listGL51 9FU: not on the flood risk listGL51 9FW: not on the flood risk listGL51 9FX: not on the flood risk listGL51 9FY: not on the flood risk listGL51 9FZ: not on the flood risk listGL51 9GA: not on the flood risk listGL51 9GE: not on the flood risk listGL51 9HA: not on the flood risk listGL51 9HB: not on the flood risk listGL51 9HD: not on the flood risk listGL51 9HE: not on the flood risk listGL51 9HF: not on the flood risk listGL51 9HG: not on the flood risk listGL51 9HH: not on the flood risk listGL51 9HJ: not on the flood risk listGL51 9HL: not on the flood risk listGL51 9HN: not on the flood risk listGL51 9HP: not on the flood risk listGL51 9HT: not on the flood risk listGL51 9HW: not on the flood risk listGL51 9HX: not on the flood risk listGL51 9HY: not on the flood risk listGL51 9HZ: not on the flood risk listGL51 9JB: not on the flood risk listGL51 9JD: not on the flood risk listGL51 9JE: not on the flood risk listGL51 9JF: not on the flood risk listGL51 9JG: not on the flood risk listGL51 9JH: not on the flood risk listGL51 9JJ: not on the flood risk listGL51 9JL: not on the flood risk listGL51 9JP: not on the flood risk listGL51 9JQ: not on the flood risk listGL51 9JR: not on the flood risk listGL51 9JS: not on the flood risk listGL51 9JU: not on the flood risk listGL51 9JW: not on the flood risk listGL51 9JX: not on the flood risk listGL51 9JY: not on the flood risk listGL51 9JZ: not on the flood risk listGL51 9LB: not on the flood risk listGL51 9LD: not on the flood risk listGL51 9LF: not on the flood risk listGL51 9LG: not on the flood risk listGL51 9LH: not on the flood risk listGL51 9LJ: not on the flood risk listGL51 9LQ: not on the flood risk listGL51 9LX: not on the flood risk listGL51 9NA: not on the flood risk listGL51 9NB: not on the flood risk listGL51 9NE: not on the flood risk listGL51 9NH: not on the flood risk listGL51 9NW: not on the flood risk listGL51 9NX: not on the flood risk listGL51 9NZ: not on the flood risk listGL51 9PA: not on the flood risk listGL51 9PB: not on the flood risk listGL51 9PD: not on the flood risk listGL51 9PE: not on the flood risk listGL51 9PJ: not on the flood risk listGL51 9PL: not on the flood risk listGL51 9PS: not on the flood risk listGL51 9PX: not on the flood risk listGL51 9QB: not on the flood risk listGL51 9QD: not on the flood risk listGL51 9QE: not on the flood risk listGL51 9QG: not on the flood risk listGL51 9QH: not on the flood risk listGL51 9QN: not on the flood risk listGL51 9QP: not on the flood risk listGL51 9QQ: not on the flood risk listGL51 9QR: not on the flood risk listGL51 9QS: not on the flood risk listGL51 9QT: not on the flood risk listGL51 9QU: not on the flood risk listGL51 9QW: not on the flood risk listGL51 9QX: not on the flood risk listGL51 9QZ: not on the flood risk listGL51 9RA: not on the flood risk listGL51 9RB: not on the flood risk listGL51 9RD: not on the flood risk listGL51 9RE: not on the flood risk listGL51 9RF: not on the flood risk listGL51 9RG: not on the flood risk listGL51 9RJ: not on the flood risk listGL51 9RL: not on the flood risk listGL51 9RN: not on the flood risk listGL51 9RP: not on the flood risk listGL51 9RQ: not on the flood risk listGL51 9RR: not on the flood risk listGL51 9RU: not on the flood risk listGL51 9RW: not on the flood risk listGL51 9RX: not on the flood risk listGL51 9RZ: not on the flood risk listGL51 9SA: not on the flood risk listGL51 9SB: not on the flood risk listGL51 9SE: not on the flood risk listGL51 9SG: not on the flood risk listGL51 9SP: not on the flood risk listGL51 9SQ: not on the flood risk listGL51 9SS: not on the flood risk listGL51 9ST: not on the flood risk listGL51 9SW: not on the flood risk listGL51 9TB: not on the flood risk listGL51 9TD: not on the flood risk listGL51 9TE: not on the flood risk listGL51 9TF: not on the flood risk listGL51 9TG: not on the flood risk listGL51 9TJ: not on the flood risk listGL51 9TP: not on the flood risk listGL51 9TQ: not on the flood risk listGL51 9TT: not on the flood risk listGL51 9TU: not on the flood risk listGL51 9TW: not on the flood risk listGL51 9TX: not on the flood risk listGL51 9LL: very low flood risk onlyGL51 9LN: very low flood risk onlyGL51 9AA: low flood risk at worstGL51 9AH: low flood risk at worstGL51 9AL: low flood risk at worstGL51 9AN: low flood risk at worstGL51 9DN: low flood risk at worstGL51 9FB: low flood risk at worstGL51 9FF: low flood risk at worstGL51 9NQ: low flood risk at worstGL51 9RY: low flood risk at worstGL51 9SD: low flood risk at worstGL51 9SL: low flood risk at worstGL51 9SN: low flood risk at worstGL51 9SU: low flood risk at worstGL51 9SX: low flood risk at worstGL51 9FL: medium flood risk at worstGL51 9QA: medium flood risk at worstGL51 9QJ: medium flood risk at worstGL51 9TH: medium flood risk at worstGL51 9DX: high flood riskGL51 9LT: high flood riskGL51 9NJ: high flood riskGL51 9NN: high flood riskGL51 9PT: high flood riskGL51 9QF: high flood riskGL51 9QL: high flood riskGL51 9RS: high flood riskGL51 9SY: high flood riskGL51 9SZ: high flood riskGL51 9TA: high flood riskGL51 9TL: high flood riskGL51 9TN: high flood risk Swindon VillageSt Paul's 5 postcodes at high or medium risk, outlined: this goes to GL51 9LT, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the GL51 9 sector, by flood risk Of the 227 postcodes in the GL51 9 sector that ONS places, 13 have a home or business at high risk, 4 are at medium risk at worst, 14 are at low risk at worst, 2 are at very low risk only and 194 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: Swindon Village, St Paul's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M5 Swindon VillageSt Paul's
  • A home or business at high risk: 13
  • At medium risk at worst: 4
  • At low risk at worst: 14
  • At very low risk only: 2
  • Not on the at-risk list: 194
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 227 postcodes in the GL51 9 sector that ONS places, 13 have a home or business at high risk, 4 are at medium risk at worst, 14 are at low risk at worst, 2 are at very low risk only and 194 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. 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

13 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

GL51 9TL8 at high riskGL51 9NJ7 at high riskGL51 9TA7 at high riskGL51 9SY5 at high riskGL51 9RS3 at high riskGL51 9TN2 at high riskGL51 9SZ1 at high riskGL51 9DX1 at high riskGL51 9LT1 at high riskGL51 9NN1 at high riskGL51 9PT1 at high riskGL51 9QF1 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. GL51 9LT, is the one with most homes and businesses at high risk.

What do homes sell for in GL51 9?

Homes in GL51 9 sold for a typical £260,000 in the 12 months to August 2026, across 59 sales, up 2.2% on the 12 months before, HM Land Registry's figures show.

£260,000 typical price, the 12 months to August 2026
£254,500 12 months to August 2025
▲ up 2.2% on the 12 months before
  • Detached £410,000 7 sales
  • Semi-detached £288,500 18 sales
  • Terraced £254,975 22 sales
  • Flat or maisonette £121,500 12 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 GL51 9. 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 GL51 9

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.

GL51 9AAGL51 9ABGL51 9ADGL51 9AHGL51 9AJGL51 9ALGL51 9ANGL51 9ARGL51 9ASGL51 9ATGL51 9AUGL51 9AXGL51 9AYGL51 9AZGL51 9BAGL51 9BBGL51 9BDGL51 9BEGL51 9BHGL51 9BJGL51 9BLGL51 9BNGL51 9BQGL51 9BSGL51 9BTGL51 9BUGL51 9BWGL51 9BXGL51 9BYGL51 9BZGL51 9DAGL51 9DBGL51 9DDGL51 9DEGL51 9DFGL51 9DGGL51 9DHGL51 9DJGL51 9DLGL51 9DNGL51 9DPGL51 9DQGL51 9DRGL51 9DTGL51 9DUGL51 9DWGL51 9DXGL51 9DYGL51 9DZGL51 9EAGL51 9EBGL51 9EDGL51 9EEGL51 9EFGL51 9EGGL51 9EHGL51 9EJGL51 9EQGL51 9ERGL51 9ESGL51 9ETGL51 9EUGL51 9EWGL51 9EXGL51 9EYGL51 9EZGL51 9FAGL51 9FBGL51 9FDGL51 9FEGL51 9FFGL51 9FHGL51 9FJGL51 9FLGL51 9FNGL51 9FPGL51 9FQGL51 9FRGL51 9FSGL51 9FTGL51 9FUGL51 9FWGL51 9FXGL51 9FYGL51 9FZGL51 9GAGL51 9GEGL51 9HAGL51 9HBGL51 9HDGL51 9HEGL51 9HFGL51 9HGGL51 9HHGL51 9HJGL51 9HLGL51 9HNGL51 9HPGL51 9HQGL51 9HRGL51 9HTGL51 9HUGL51 9HWGL51 9HXGL51 9HYGL51 9HZGL51 9JAGL51 9JBGL51 9JDGL51 9JEGL51 9JFGL51 9JGGL51 9JHGL51 9JJGL51 9JLGL51 9JPGL51 9JQGL51 9JRGL51 9JSGL51 9JUGL51 9JWGL51 9JXGL51 9JYGL51 9JZGL51 9LBGL51 9LDGL51 9LFGL51 9LGGL51 9LHGL51 9LJGL51 9LLGL51 9LNGL51 9LQGL51 9LTGL51 9LUGL51 9LXGL51 9NAGL51 9NBGL51 9NEGL51 9NHGL51 9NJGL51 9NNGL51 9NQGL51 9NWGL51 9NXGL51 9NZGL51 9PAGL51 9PBGL51 9PDGL51 9PEGL51 9PJGL51 9PLGL51 9PSGL51 9PTGL51 9PXGL51 9QAGL51 9QBGL51 9QDGL51 9QEGL51 9QFGL51 9QGGL51 9QHGL51 9QJGL51 9QLGL51 9QNGL51 9QPGL51 9QQGL51 9QRGL51 9QSGL51 9QTGL51 9QUGL51 9QWGL51 9QXGL51 9QYGL51 9QZGL51 9RAGL51 9RBGL51 9RDGL51 9REGL51 9RFGL51 9RGGL51 9RJGL51 9RLGL51 9RNGL51 9RPGL51 9RQGL51 9RRGL51 9RSGL51 9RUGL51 9RWGL51 9RXGL51 9RYGL51 9RZGL51 9SAGL51 9SBGL51 9SDGL51 9SEGL51 9SGGL51 9SLGL51 9SNGL51 9SPGL51 9SQGL51 9SRGL51 9SSGL51 9STGL51 9SUGL51 9SWGL51 9SXGL51 9SYGL51 9SZGL51 9TAGL51 9TBGL51 9TDGL51 9TEGL51 9TFGL51 9TGGL51 9THGL51 9TJGL51 9TLGL51 9TNGL51 9TPGL51 9TQGL51 9TTGL51 9TUGL51 9TWGL51 9TXGL51 9TZ

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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