SL6 9 postcode sector in the SL6 district

SL6 9 is a sector of the SL6 district: every postcode that starts SL6 9. It has 257 postcodes in use, 3 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 SL6 9 sector, by flood risk

Map of every postcode in the SL6 9 sector, by flood risk Of the 257 postcodes in the SL6 9 sector that ONS places, 21 have a home or business at high risk, 26 are at medium risk at worst, 6 are at low risk at worst, 7 are at very low risk only and 197 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 24 postcodes at high or medium risk. 3 postcodes lie beyond the edge and are listed under the map. Places named: Cookham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. SL6 9AA: not on the flood risk listSL6 9AB: not on the flood risk listSL6 9AD: not on the flood risk listSL6 9AE: not on the flood risk listSL6 9AF: not on the flood risk listSL6 9AG: not on the flood risk listSL6 9AH: not on the flood risk listSL6 9AJ: not on the flood risk listSL6 9AL: not on the flood risk listSL6 9AN: not on the flood risk listSL6 9AP: not on the flood risk listSL6 9AQ: not on the flood risk listSL6 9AR: not on the flood risk listSL6 9AS: not on the flood risk listSL6 9AT: not on the flood risk listSL6 9AU: not on the flood risk listSL6 9AX: not on the flood risk listSL6 9AY: not on the flood risk listSL6 9AZ: not on the flood risk listSL6 9BA: not on the flood risk listSL6 9BB: not on the flood risk listSL6 9BD: not on the flood risk listSL6 9BE: not on the flood risk listSL6 9BG: not on the flood risk listSL6 9BH: not on the flood risk listSL6 9BL: not on the flood risk listSL6 9BP: not on the flood risk listSL6 9BQ: not on the flood risk listSL6 9BR: not on the flood risk listSL6 9BS: not on the flood risk listSL6 9BT: not on the flood risk listSL6 9BU: not on the flood risk listSL6 9BX: not on the flood risk listSL6 9BY: not on the flood risk listSL6 9BZ: not on the flood risk listSL6 9DB: not on the flood risk listSL6 9DE: not on the flood risk listSL6 9DQ: not on the flood risk listSL6 9DT: not on the flood risk listSL6 9DX: not on the flood risk listSL6 9EA: not on the flood risk listSL6 9EB: not on the flood risk listSL6 9ED: not on the flood risk listSL6 9EE: not on the flood risk listSL6 9EH: not on the flood risk listSL6 9EJ: not on the flood risk listSL6 9EL: not on the flood risk listSL6 9EN: not on the flood risk listSL6 9EP: not on the flood risk listSL6 9ER: not on the flood risk listSL6 9ET: not on the flood risk listSL6 9EU: not on the flood risk listSL6 9EW: not on the flood risk listSL6 9EX: not on the flood risk listSL6 9EY: not on the flood risk listSL6 9EZ: not on the flood risk listSL6 9FE: not on the flood risk listSL6 9FF: not on the flood risk listSL6 9FG: not on the flood risk listSL6 9FQ: not on the flood risk listSL6 9GT: not on the flood risk listSL6 9GX: not on the flood risk listSL6 9HA: not on the flood risk listSL6 9HB: not on the flood risk listSL6 9HD: not on the flood risk listSL6 9HE: not on the flood risk listSL6 9HF: not on the flood risk listSL6 9HG: not on the flood risk listSL6 9HH: not on the flood risk listSL6 9HJ: not on the flood risk listSL6 9HL: not on the flood risk listSL6 9HP: not on the flood risk listSL6 9HQ: not on the flood risk listSL6 9HR: not on the flood risk listSL6 9HS: not on the flood risk listSL6 9HT: not on the flood risk listSL6 9HU: not on the flood risk listSL6 9HW: not on the flood risk listSL6 9HX: not on the flood risk listSL6 9HY: not on the flood risk listSL6 9HZ: not on the flood risk listSL6 9JA: not on the flood risk listSL6 9JD: not on the flood risk listSL6 9JE: not on the flood risk listSL6 9JF: not on the flood risk listSL6 9JG: not on the flood risk listSL6 9JH: not on the flood risk listSL6 9JL: not on the flood risk listSL6 9JN: not on the flood risk listSL6 9JP: not on the flood risk listSL6 9JQ: not on the flood risk listSL6 9JS: not on the flood risk listSL6 9JT: not on the flood risk listSL6 9JU: not on the flood risk listSL6 9JW: not on the flood risk listSL6 9JX: not on the flood risk listSL6 9JY: not on the flood risk listSL6 9LA: not on the flood risk listSL6 9LD: not on the flood risk listSL6 9LE: not on the flood risk listSL6 9LF: not on the flood risk listSL6 9LG: not on the flood risk listSL6 9LH: not on the flood risk listSL6 9LJ: not on the flood risk listSL6 9LL: not on the flood risk listSL6 9LP: not on the flood risk listSL6 9LQ: not on the flood risk listSL6 9LR: not on the flood risk listSL6 9LS: not on the flood risk listSL6 9LT: not on the flood risk listSL6 9LU: not on the flood risk listSL6 9LW: not on the flood risk listSL6 9LX: not on the flood risk listSL6 9LY: not on the flood risk listSL6 9LZ: not on the flood risk listSL6 9NA: not on the flood risk listSL6 9NB: not on the flood risk listSL6 9ND: not on the flood risk listSL6 9NE: not on the flood risk listSL6 9NF: not on the flood risk listSL6 9NG: not on the flood risk listSL6 9NH: not on the flood risk listSL6 9NJ: not on the flood risk listSL6 9NL: not on the flood risk listSL6 9NP: not on the flood risk listSL6 9NQ: not on the flood risk listSL6 9NR: not on the flood risk listSL6 9NT: not on the flood risk listSL6 9NU: not on the flood risk listSL6 9NX: not on the flood risk listSL6 9NY: not on the flood risk listSL6 9NZ: not on the flood risk listSL6 9PA: not on the flood risk listSL6 9PB: not on the flood risk listSL6 9PD: not on the flood risk listSL6 9PE: not on the flood risk listSL6 9PF: not on the flood risk listSL6 9PG: not on the flood risk listSL6 9PH: not on the flood risk listSL6 9PJ: not on the flood risk listSL6 9PL: not on the flood risk listSL6 9PN: not on the flood risk listSL6 9PP: not on the flood risk listSL6 9PQ: not on the flood risk listSL6 9PR: not on the flood risk listSL6 9PS: not on the flood risk listSL6 9PT: not on the flood risk listSL6 9PU: not on the flood risk listSL6 9PW: not on the flood risk listSL6 9PX: not on the flood risk listSL6 9PY: not on the flood risk listSL6 9QE: not on the flood risk listSL6 9QF: not on the flood risk listSL6 9RF: not on the flood risk listSL6 9RL: not on the flood risk listSL6 9RN: not on the flood risk listSL6 9RP: not on the flood risk listSL6 9RR: not on the flood risk listSL6 9RS: not on the flood risk listSL6 9RU: not on the flood risk listSL6 9RW: not on the flood risk listSL6 9RY: not on the flood risk listSL6 9RZ: not on the flood risk listSL6 9TE: not on the flood risk listSL6 9TF: not on the flood risk listSL6 9TG: not on the flood risk listSL6 9TH: not on the flood risk listSL6 9TJ: not on the flood risk listSL6 9TL: not on the flood risk listSL6 9TN: not on the flood risk listSL6 9TQ: not on the flood risk listSL6 9TS: not on the flood risk listSL6 9TT: not on the flood risk listSL6 9TU: not on the flood risk listSL6 9TW: not on the flood risk listSL6 9TX: not on the flood risk listSL6 9TY: not on the flood risk listSL6 9TZ: not on the flood risk listSL6 9UA: not on the flood risk listSL6 9UB: not on the flood risk listSL6 9UD: not on the flood risk listSL6 9UE: not on the flood risk listSL6 9UF: not on the flood risk listSL6 9UG: not on the flood risk listSL6 9UH: not on the flood risk listSL6 9UJ: not on the flood risk listSL6 9UP: not on the flood risk listSL6 9UQ: not on the flood risk listSL6 9DA: very low flood risk onlySL6 9DD: very low flood risk onlySL6 9DW: very low flood risk onlySL6 9QG: very low flood risk onlySL6 9QL: very low flood risk onlySL6 9RE: very low flood risk onlySL6 9SP: very low flood risk onlySL6 9DS: low flood risk at worstSL6 9DY: low flood risk at worstSL6 9DZ: low flood risk at worstSL6 9QW: low flood risk at worstSL6 9SU: low flood risk at worstSL6 9SW: low flood risk at worstSL6 9BF: medium flood risk at worstSL6 9DF: medium flood risk at worstSL6 9DG: medium flood risk at worstSL6 9DJ: medium flood risk at worstSL6 9DR: medium flood risk at worstSL6 9QH: medium flood risk at worstSL6 9QJ: medium flood risk at worstSL6 9QN: medium flood risk at worstSL6 9QP: medium flood risk at worstSL6 9QQ: medium flood risk at worstSL6 9QU: medium flood risk at worstSL6 9QY: medium flood risk at worstSL6 9RT: medium flood risk at worstSL6 9RX: medium flood risk at worstSL6 9SB: medium flood risk at worstSL6 9SE: medium flood risk at worstSL6 9SF: medium flood risk at worstSL6 9SG: medium flood risk at worstSL6 9SH: medium flood risk at worstSL6 9SJ: medium flood risk at worstSL6 9SL: medium flood risk at worstSL6 9SQ: medium flood risk at worstSL6 9SS: medium flood risk at worstSL6 9SY: medium flood risk at worstSL6 9XH: medium flood risk at worstSL6 9DH: high flood riskSL6 9DL: high flood riskSL6 9DN: high flood riskSL6 9DU: high flood riskSL6 9QD: high flood riskSL6 9QR: high flood riskSL6 9QS: high flood riskSL6 9QZ: high flood riskSL6 9RB: high flood riskSL6 9RD: high flood riskSL6 9SA: high flood riskSL6 9SD: high flood riskSL6 9SN: high flood riskSL6 9SR: high flood riskSL6 9SX: high flood riskSL6 9TP: high flood riskSL6 9TR: high flood risk Cookham 24 postcodes at high or medium risk, outlined: this goes to SL6 9QS, the one with most homes and businesses at high risk24 postcodes at high or medium risk Map of every postcode in the SL6 9 sector, by flood risk Of the 257 postcodes in the SL6 9 sector that ONS places, 21 have a home or business at high risk, 26 are at medium risk at worst, 6 are at low risk at worst, 7 are at very low risk only and 197 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 24 postcodes at high or medium risk. 3 postcodes lie beyond the edge and are listed under the map. Places named: Cookham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Cookham
  • A home or business at high risk: 21
  • At medium risk at worst: 26
  • At low risk at worst: 6
  • At very low risk only: 7
  • Not on the at-risk list: 197
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 257 postcodes in the SL6 9 sector that ONS places, 21 have a home or business at high risk, 26 are at medium risk at worst, 6 are at low risk at worst, 7 are at very low risk only and 197 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

21 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.

SL6 9RQ29 at high riskSL6 9DN10 at high riskSL6 9QS8 at high riskSL6 9DL8 at high riskSL6 9TR8 at high riskSL6 9SN6 at high riskSL6 9SR5 at high riskSL6 9RD5 at high riskSL6 9QT5 at high riskSL6 9TP5 at high riskSL6 9QZ4 at high riskSL6 9QX3 at high risk

3 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

SL6 9QTSL6 9QXSL6 9RQ

Where the postcodes at high or medium risk lie together

  • 24 postcodes at high or medium risk, outlined on the map. SL6 9QS, is the one with most homes and businesses at high risk.

What do homes sell for in SL6 9?

Homes in SL6 9 sold for a typical £686,500 in the 12 months to August 2026, across 56 sales, down 0.5% on the 12 months before, HM Land Registry's figures show.

£686,500 typical price, the 12 months to August 2026
£690,000 12 months to August 2025
▼ down 0.5% on the 12 months before
  • Detached £1,000,000 15 sales
  • Semi-detached £748,000 17 sales
  • Terraced £515,000 17 sales
  • Flat or maisonette £345,000 7 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 SL6 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 SL6 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.

SL6 9AASL6 9ABSL6 9ADSL6 9AESL6 9AFSL6 9AGSL6 9AHSL6 9AJSL6 9ALSL6 9ANSL6 9APSL6 9AQSL6 9ARSL6 9ASSL6 9ATSL6 9AUSL6 9AWSL6 9AXSL6 9AYSL6 9AZSL6 9BASL6 9BBSL6 9BDSL6 9BESL6 9BFSL6 9BGSL6 9BHSL6 9BLSL6 9BPSL6 9BQSL6 9BRSL6 9BSSL6 9BTSL6 9BUSL6 9BXSL6 9BYSL6 9BZSL6 9DASL6 9DBSL6 9DDSL6 9DESL6 9DFSL6 9DGSL6 9DHSL6 9DJSL6 9DLSL6 9DNSL6 9DQSL6 9DRSL6 9DSSL6 9DTSL6 9DUSL6 9DWSL6 9DXSL6 9DYSL6 9DZSL6 9EASL6 9EBSL6 9EDSL6 9EESL6 9EHSL6 9EJSL6 9ELSL6 9ENSL6 9EPSL6 9EQSL6 9ERSL6 9ESSL6 9ETSL6 9EUSL6 9EWSL6 9EXSL6 9EYSL6 9EZSL6 9FESL6 9FFSL6 9FGSL6 9FQSL6 9FZSL6 9GTSL6 9GXSL6 9HASL6 9HBSL6 9HDSL6 9HESL6 9HFSL6 9HGSL6 9HHSL6 9HJSL6 9HLSL6 9HNSL6 9HPSL6 9HQSL6 9HRSL6 9HSSL6 9HTSL6 9HUSL6 9HWSL6 9HXSL6 9HYSL6 9HZSL6 9JASL6 9JBSL6 9JDSL6 9JESL6 9JFSL6 9JGSL6 9JHSL6 9JJSL6 9JLSL6 9JNSL6 9JPSL6 9JQSL6 9JRSL6 9JSSL6 9JTSL6 9JUSL6 9JWSL6 9JXSL6 9JYSL6 9LASL6 9LDSL6 9LESL6 9LFSL6 9LGSL6 9LHSL6 9LJSL6 9LLSL6 9LPSL6 9LQSL6 9LRSL6 9LSSL6 9LTSL6 9LUSL6 9LWSL6 9LXSL6 9LYSL6 9LZSL6 9NASL6 9NBSL6 9NDSL6 9NESL6 9NFSL6 9NGSL6 9NHSL6 9NJSL6 9NLSL6 9NPSL6 9NQSL6 9NRSL6 9NTSL6 9NUSL6 9NXSL6 9NYSL6 9NZSL6 9PASL6 9PBSL6 9PDSL6 9PESL6 9PFSL6 9PGSL6 9PHSL6 9PJSL6 9PLSL6 9PNSL6 9PPSL6 9PQSL6 9PRSL6 9PSSL6 9PTSL6 9PUSL6 9PWSL6 9PXSL6 9PYSL6 9QDSL6 9QESL6 9QFSL6 9QGSL6 9QHSL6 9QJSL6 9QLSL6 9QNSL6 9QPSL6 9QQSL6 9QRSL6 9QSSL6 9QTSL6 9QUSL6 9QWSL6 9QXSL6 9QYSL6 9QZSL6 9RBSL6 9RDSL6 9RESL6 9RFSL6 9RHSL6 9RLSL6 9RNSL6 9RPSL6 9RQSL6 9RRSL6 9RSSL6 9RTSL6 9RUSL6 9RWSL6 9RXSL6 9RYSL6 9RZSL6 9SASL6 9SBSL6 9SDSL6 9SESL6 9SFSL6 9SGSL6 9SHSL6 9SJSL6 9SLSL6 9SNSL6 9SPSL6 9SQSL6 9SRSL6 9SSSL6 9SUSL6 9SWSL6 9SXSL6 9SYSL6 9SZSL6 9TASL6 9TESL6 9TFSL6 9TGSL6 9THSL6 9TJSL6 9TLSL6 9TNSL6 9TPSL6 9TQSL6 9TRSL6 9TSSL6 9TTSL6 9TUSL6 9TWSL6 9TXSL6 9TYSL6 9TZSL6 9UASL6 9UBSL6 9UDSL6 9UESL6 9UFSL6 9UGSL6 9UHSL6 9UJSL6 9UPSL6 9UQSL6 9XH

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

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