TW20 9 postcode sector in the TW20 district

TW20 9 is a sector of the TW20 district: every postcode that starts TW20 9. It has 209 postcodes in use, 6 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 TW20 9 sector, by flood risk

Map of every postcode in the TW20 9 sector, by flood risk Of the 209 postcodes in the TW20 9 sector that ONS places, 5 have a home or business at high risk, 32 are at medium risk at worst, 80 are at low risk at worst, 2 are at very low risk only and 90 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 27 postcodes at high or medium risk. Places named: Egham Town. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M25A30 TW20 9AY: not on the flood risk listTW20 9DU: not on the flood risk listTW20 9DY: not on the flood risk listTW20 9ED: not on the flood risk listTW20 9EQ: not on the flood risk listTW20 9ES: not on the flood risk listTW20 9FA: not on the flood risk listTW20 9FD: not on the flood risk listTW20 9FE: not on the flood risk listTW20 9FG: not on the flood risk listTW20 9FJ: not on the flood risk listTW20 9FL: not on the flood risk listTW20 9FN: not on the flood risk listTW20 9FP: not on the flood risk listTW20 9GA: not on the flood risk listTW20 9GD: not on the flood risk listTW20 9GF: not on the flood risk listTW20 9HD: not on the flood risk listTW20 9HN: not on the flood risk listTW20 9HP: not on the flood risk listTW20 9HZ: not on the flood risk listTW20 9JL: not on the flood risk listTW20 9LG: not on the flood risk listTW20 9LJ: not on the flood risk listTW20 9LL: not on the flood risk listTW20 9LP: not on the flood risk listTW20 9LR: not on the flood risk listTW20 9LS: not on the flood risk listTW20 9LT: not on the flood risk listTW20 9LU: not on the flood risk listTW20 9LW: not on the flood risk listTW20 9LY: not on the flood risk listTW20 9LZ: not on the flood risk listTW20 9NB: not on the flood risk listTW20 9ND: not on the flood risk listTW20 9NE: not on the flood risk listTW20 9NF: not on the flood risk listTW20 9NG: not on the flood risk listTW20 9NQ: not on the flood risk listTW20 9NU: not on the flood risk listTW20 9NZ: not on the flood risk listTW20 9PA: not on the flood risk listTW20 9PB: not on the flood risk listTW20 9PD: not on the flood risk listTW20 9PE: not on the flood risk listTW20 9PF: not on the flood risk listTW20 9PG: not on the flood risk listTW20 9PL: not on the flood risk listTW20 9PP: not on the flood risk listTW20 9PR: not on the flood risk listTW20 9PS: not on the flood risk listTW20 9PW: not on the flood risk listTW20 9PX: not on the flood risk listTW20 9PY: not on the flood risk listTW20 9QA: not on the flood risk listTW20 9QD: not on the flood risk listTW20 9QF: not on the flood risk listTW20 9QG: not on the flood risk listTW20 9QJ: not on the flood risk listTW20 9QN: not on the flood risk listTW20 9QP: not on the flood risk listTW20 9QS: not on the flood risk listTW20 9QT: not on the flood risk listTW20 9QX: not on the flood risk listTW20 9QY: not on the flood risk listTW20 9RD: not on the flood risk listTW20 9RF: not on the flood risk listTW20 9RL: not on the flood risk listTW20 9RN: not on the flood risk listTW20 9RP: not on the flood risk listTW20 9RR: not on the flood risk listTW20 9RS: not on the flood risk listTW20 9RT: not on the flood risk listTW20 9RW: not on the flood risk listTW20 9RX: not on the flood risk listTW20 9RY: not on the flood risk listTW20 9SH: not on the flood risk listTW20 9SJ: not on the flood risk listTW20 9SQ: not on the flood risk listTW20 9TN: not on the flood risk listTW20 9TS: not on the flood risk listTW20 9TT: not on the flood risk listTW20 9TU: not on the flood risk listTW20 9TZ: not on the flood risk listTW20 9UT: not on the flood risk listTW20 9UU: not on the flood risk listTW20 9UZ: not on the flood risk listTW20 9WW: not on the flood risk listTW20 9EL: very low flood risk onlyTW20 9QR: very low flood risk onlyTW20 9AA: low flood risk at worstTW20 9BD: low flood risk at worstTW20 9BE: low flood risk at worstTW20 9BF: low flood risk at worstTW20 9BG: low flood risk at worstTW20 9BH: low flood risk at worstTW20 9BJ: low flood risk at worstTW20 9BL: low flood risk at worstTW20 9BN: low flood risk at worstTW20 9BP: low flood risk at worstTW20 9BQ: low flood risk at worstTW20 9BS: low flood risk at worstTW20 9BT: low flood risk at worstTW20 9BW: low flood risk at worstTW20 9BX: low flood risk at worstTW20 9BY: low flood risk at worstTW20 9BZ: low flood risk at worstTW20 9DA: low flood risk at worstTW20 9DB: low flood risk at worstTW20 9DD: low flood risk at worstTW20 9DE: low flood risk at worstTW20 9DF: low flood risk at worstTW20 9DH: low flood risk at worstTW20 9DJ: low flood risk at worstTW20 9DP: low flood risk at worstTW20 9DQ: low flood risk at worstTW20 9DR: low flood risk at worstTW20 9DT: low flood risk at worstTW20 9DZ: low flood risk at worstTW20 9EA: low flood risk at worstTW20 9EB: low flood risk at worstTW20 9EJ: low flood risk at worstTW20 9ER: low flood risk at worstTW20 9EW: low flood risk at worstTW20 9EX: low flood risk at worstTW20 9EY: low flood risk at worstTW20 9EZ: low flood risk at worstTW20 9FF: low flood risk at worstTW20 9FH: low flood risk at worstTW20 9HB: low flood risk at worstTW20 9HE: low flood risk at worstTW20 9HF: low flood risk at worstTW20 9HQ: low flood risk at worstTW20 9HY: low flood risk at worstTW20 9JA: low flood risk at worstTW20 9JB: low flood risk at worstTW20 9JD: low flood risk at worstTW20 9JE: low flood risk at worstTW20 9JF: low flood risk at worstTW20 9JG: low flood risk at worstTW20 9JQ: low flood risk at worstTW20 9JR: low flood risk at worstTW20 9JS: low flood risk at worstTW20 9JT: low flood risk at worstTW20 9LA: low flood risk at worstTW20 9LB: low flood risk at worstTW20 9LE: low flood risk at worstTW20 9LF: low flood risk at worstTW20 9LN: low flood risk at worstTW20 9LQ: low flood risk at worstTW20 9LX: low flood risk at worstTW20 9PH: low flood risk at worstTW20 9PJ: low flood risk at worstTW20 9PN: low flood risk at worstTW20 9PQ: low flood risk at worstTW20 9QB: low flood risk at worstTW20 9QU: low flood risk at worstTW20 9QW: low flood risk at worstTW20 9QZ: low flood risk at worstTW20 9RB: low flood risk at worstTW20 9RE: low flood risk at worstTW20 9RG: low flood risk at worstTW20 9RH: low flood risk at worstTW20 9SU: low flood risk at worstTW20 9SX: low flood risk at worstTW20 9SY: low flood risk at worstTW20 9UP: low flood risk at worstTW20 9UR: low flood risk at worstTW20 9UX: low flood risk at worstTW20 9AB: medium flood risk at worstTW20 9AD: medium flood risk at worstTW20 9AG: medium flood risk at worstTW20 9AH: medium flood risk at worstTW20 9AL: medium flood risk at worstTW20 9AR: medium flood risk at worstTW20 9AZ: medium flood risk at worstTW20 9BU: medium flood risk at worstTW20 9FB: medium flood risk at worstTW20 9GG: medium flood risk at worstTW20 9GH: medium flood risk at worstTW20 9GJ: medium flood risk at worstTW20 9GL: medium flood risk at worstTW20 9GN: medium flood risk at worstTW20 9GP: medium flood risk at worstTW20 9HA: medium flood risk at worstTW20 9HG: medium flood risk at worstTW20 9HH: medium flood risk at worstTW20 9HL: medium flood risk at worstTW20 9HR: medium flood risk at worstTW20 9HS: medium flood risk at worstTW20 9HW: medium flood risk at worstTW20 9HX: medium flood risk at worstTW20 9JH: medium flood risk at worstTW20 9JJ: medium flood risk at worstTW20 9JN: medium flood risk at worstTW20 9JP: medium flood risk at worstTW20 9JW: medium flood risk at worstTW20 9JZ: medium flood risk at worstTW20 9PZ: medium flood risk at worstTW20 9RQ: medium flood risk at worstTW20 9AP: high flood riskTW20 9RJ: high flood riskTW20 9TP: high flood riskTW20 9TR: high flood riskTW20 9UW: high flood risk Egham Town 27 postcodes at high or medium risk, outlined: this goes to TW20 9HW, the one with most homes and businesses at high risk27 postcodes at high or medium risk Map of every postcode in the TW20 9 sector, by flood risk Of the 209 postcodes in the TW20 9 sector that ONS places, 5 have a home or business at high risk, 32 are at medium risk at worst, 80 are at low risk at worst, 2 are at very low risk only and 90 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 27 postcodes at high or medium risk. Places named: Egham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M25A30 Egham
  • A home or business at high risk: 5
  • At medium risk at worst: 32
  • At low risk at worst: 80
  • At very low risk only: 2
  • Not on the at-risk list: 90
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 209 postcodes in the TW20 9 sector that ONS places, 5 have a home or business at high risk, 32 are at medium risk at worst, 80 are at low risk at worst, 2 are at very low risk only and 90 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

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

TW20 9AP14 at high riskTW20 9UW3 at high riskTW20 9TP2 at high riskTW20 9RJ1 at high riskTW20 9TR1 at high risk

Where the postcodes at high or medium risk lie together

  • 27 postcodes at high or medium risk, outlined on the map. TW20 9HW, is the one with most homes and businesses at high risk.

What do homes sell for in TW20 9?

Homes in TW20 9 sold for a typical £452,500 in the 12 months to August 2026, across 66 sales, up 2.8% on the 12 months before, HM Land Registry's figures show.

£452,500 typical price, the 12 months to August 2026
£440,000 12 months to August 2025
▲ up 2.8% on the 12 months before
  • Detached £717,500 20 sales
  • Semi-detached £528,000 13 sales
  • Terraced £445,000 9 sales
  • Flat or maisonette £247,500 24 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 TW20 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 TW20 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.

TW20 9AATW20 9ABTW20 9ADTW20 9AGTW20 9AHTW20 9ALTW20 9APTW20 9ARTW20 9AYTW20 9AZTW20 9BDTW20 9BETW20 9BFTW20 9BGTW20 9BHTW20 9BJTW20 9BLTW20 9BNTW20 9BPTW20 9BQTW20 9BSTW20 9BTTW20 9BUTW20 9BWTW20 9BXTW20 9BYTW20 9BZTW20 9DATW20 9DBTW20 9DDTW20 9DETW20 9DFTW20 9DHTW20 9DJTW20 9DPTW20 9DQTW20 9DRTW20 9DTTW20 9DUTW20 9DYTW20 9DZTW20 9EATW20 9EBTW20 9EDTW20 9EJTW20 9ELTW20 9EQTW20 9ERTW20 9ESTW20 9EWTW20 9EXTW20 9EYTW20 9EZTW20 9FATW20 9FBTW20 9FDTW20 9FETW20 9FFTW20 9FGTW20 9FHTW20 9FJTW20 9FLTW20 9FNTW20 9FPTW20 9GATW20 9GBTW20 9GDTW20 9GETW20 9GFTW20 9GGTW20 9GHTW20 9GJTW20 9GLTW20 9GNTW20 9GPTW20 9HATW20 9HBTW20 9HDTW20 9HETW20 9HFTW20 9HGTW20 9HHTW20 9HJTW20 9HLTW20 9HNTW20 9HPTW20 9HQTW20 9HRTW20 9HSTW20 9HUTW20 9HWTW20 9HXTW20 9HYTW20 9HZTW20 9JATW20 9JBTW20 9JDTW20 9JETW20 9JFTW20 9JGTW20 9JHTW20 9JJTW20 9JLTW20 9JNTW20 9JPTW20 9JQTW20 9JRTW20 9JSTW20 9JTTW20 9JWTW20 9JZTW20 9LATW20 9LBTW20 9LETW20 9LFTW20 9LGTW20 9LJTW20 9LLTW20 9LNTW20 9LPTW20 9LQTW20 9LRTW20 9LSTW20 9LTTW20 9LUTW20 9LWTW20 9LXTW20 9LYTW20 9LZTW20 9NBTW20 9NDTW20 9NETW20 9NFTW20 9NGTW20 9NQTW20 9NUTW20 9NZTW20 9PATW20 9PBTW20 9PDTW20 9PETW20 9PFTW20 9PGTW20 9PHTW20 9PJTW20 9PLTW20 9PNTW20 9PPTW20 9PQTW20 9PRTW20 9PSTW20 9PWTW20 9PXTW20 9PYTW20 9PZTW20 9QATW20 9QBTW20 9QDTW20 9QFTW20 9QGTW20 9QJTW20 9QNTW20 9QPTW20 9QRTW20 9QSTW20 9QTTW20 9QUTW20 9QWTW20 9QXTW20 9QYTW20 9QZTW20 9RBTW20 9RDTW20 9RETW20 9RFTW20 9RGTW20 9RHTW20 9RJTW20 9RLTW20 9RNTW20 9RPTW20 9RQTW20 9RRTW20 9RSTW20 9RTTW20 9RWTW20 9RXTW20 9RYTW20 9SHTW20 9SJTW20 9SQTW20 9SUTW20 9SXTW20 9SYTW20 9TNTW20 9TPTW20 9TRTW20 9TSTW20 9TTTW20 9TUTW20 9TZTW20 9UPTW20 9URTW20 9UTTW20 9UUTW20 9UWTW20 9UXTW20 9UZTW20 9WW

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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