SL6 1 postcode sector in the SL6 district

SL6 1 is a sector of the SL6 district: every postcode that starts SL6 1. It has 239 postcodes in use, 17 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 1 sector, by flood risk

Map of every postcode in the SL6 1 sector, by flood risk Of the 239 postcodes in the SL6 1 sector that ONS places, 12 have a home or business at high risk, 15 are at medium risk at worst, 57 are at low risk at worst, 7 are at very low risk only and 148 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 15 postcodes at high or medium risk. Places named: Maidenhead. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SL6 1AG: not on the flood risk listSL6 1AX: not on the flood risk listSL6 1BA: not on the flood risk listSL6 1BB: not on the flood risk listSL6 1BD: not on the flood risk listSL6 1BF: not on the flood risk listSL6 1BG: not on the flood risk listSL6 1BN: not on the flood risk listSL6 1BR: not on the flood risk listSL6 1BS: not on the flood risk listSL6 1BU: not on the flood risk listSL6 1BY: not on the flood risk listSL6 1BZ: not on the flood risk listSL6 1DA: not on the flood risk listSL6 1DB: not on the flood risk listSL6 1DD: not on the flood risk listSL6 1DE: not on the flood risk listSL6 1DF: not on the flood risk listSL6 1DG: not on the flood risk listSL6 1DH: not on the flood risk listSL6 1DJ: not on the flood risk listSL6 1DN: not on the flood risk listSL6 1DP: not on the flood risk listSL6 1DR: not on the flood risk listSL6 1DS: not on the flood risk listSL6 1DW: not on the flood risk listSL6 1DX: not on the flood risk listSL6 1DY: not on the flood risk listSL6 1DZ: not on the flood risk listSL6 1EA: not on the flood risk listSL6 1EB: not on the flood risk listSL6 1ED: not on the flood risk listSL6 1EE: not on the flood risk listSL6 1EF: not on the flood risk listSL6 1EG: not on the flood risk listSL6 1EH: not on the flood risk listSL6 1EJ: not on the flood risk listSL6 1EL: not on the flood risk listSL6 1EN: not on the flood risk listSL6 1EQ: not on the flood risk listSL6 1ER: not on the flood risk listSL6 1ES: not on the flood risk listSL6 1EU: not on the flood risk listSL6 1EW: not on the flood risk listSL6 1EX: not on the flood risk listSL6 1EY: not on the flood risk listSL6 1EZ: not on the flood risk listSL6 1FA: not on the flood risk listSL6 1FB: not on the flood risk listSL6 1FG: not on the flood risk listSL6 1FQ: not on the flood risk listSL6 1FW: not on the flood risk listSL6 1FY: not on the flood risk listSL6 1GF: not on the flood risk listSL6 1GQ: not on the flood risk listSL6 1HA: not on the flood risk listSL6 1HB: not on the flood risk listSL6 1HD: not on the flood risk listSL6 1HE: not on the flood risk listSL6 1HF: not on the flood risk listSL6 1HG: not on the flood risk listSL6 1HH: not on the flood risk listSL6 1HJ: not on the flood risk listSL6 1HN: not on the flood risk listSL6 1HP: not on the flood risk listSL6 1HQ: not on the flood risk listSL6 1HR: not on the flood risk listSL6 1HT: not on the flood risk listSL6 1HU: not on the flood risk listSL6 1HW: not on the flood risk listSL6 1HX: not on the flood risk listSL6 1HZ: not on the flood risk listSL6 1JB: not on the flood risk listSL6 1JE: not on the flood risk listSL6 1JF: not on the flood risk listSL6 1JQ: not on the flood risk listSL6 1JR: not on the flood risk listSL6 1JS: not on the flood risk listSL6 1JT: not on the flood risk listSL6 1JU: not on the flood risk listSL6 1JX: not on the flood risk listSL6 1LB: not on the flood risk listSL6 1LD: not on the flood risk listSL6 1LG: not on the flood risk listSL6 1LP: not on the flood risk listSL6 1LR: not on the flood risk listSL6 1LT: not on the flood risk listSL6 1LU: not on the flood risk listSL6 1LW: not on the flood risk listSL6 1LY: not on the flood risk listSL6 1NB: not on the flood risk listSL6 1ND: not on the flood risk listSL6 1NF: not on the flood risk listSL6 1NJ: not on the flood risk listSL6 1NS: not on the flood risk listSL6 1NU: not on the flood risk listSL6 1NX: not on the flood risk listSL6 1NZ: not on the flood risk listSL6 1PA: not on the flood risk listSL6 1PB: not on the flood risk listSL6 1PD: not on the flood risk listSL6 1PE: not on the flood risk listSL6 1PF: not on the flood risk listSL6 1PG: not on the flood risk listSL6 1PH: not on the flood risk listSL6 1PJ: not on the flood risk listSL6 1PL: not on the flood risk listSL6 1PN: not on the flood risk listSL6 1PP: not on the flood risk listSL6 1PQ: not on the flood risk listSL6 1PR: not on the flood risk listSL6 1PT: not on the flood risk listSL6 1PY: not on the flood risk listSL6 1QA: not on the flood risk listSL6 1QB: not on the flood risk listSL6 1QE: not on the flood risk listSL6 1QF: not on the flood risk listSL6 1QQ: not on the flood risk listSL6 1QU: not on the flood risk listSL6 1QW: not on the flood risk listSL6 1RE: not on the flood risk listSL6 1RF: not on the flood risk listSL6 1RG: not on the flood risk listSL6 1RH: not on the flood risk listSL6 1RJ: not on the flood risk listSL6 1RL: not on the flood risk listSL6 1RQ: not on the flood risk listSL6 1SF: not on the flood risk listSL6 1SG: not on the flood risk listSL6 1SL: not on the flood risk listSL6 1SP: not on the flood risk listSL6 1SQ: not on the flood risk listSL6 1SS: not on the flood risk listSL6 1SZ: not on the flood risk listSL6 1TY: not on the flood risk listSL6 1UU: not on the flood risk listSL6 1UY: not on the flood risk listSL6 1UZ: not on the flood risk listSL6 1YQ: not on the flood risk listSL6 1AH: very low flood risk onlySL6 1AR: very low flood risk onlySL6 1GG: very low flood risk onlySL6 1JG: very low flood risk onlySL6 1QH: very low flood risk onlySL6 1QZ: very low flood risk onlySL6 1YY: very low flood risk onlySL6 1AA: low flood risk at worstSL6 1AB: low flood risk at worstSL6 1AF: low flood risk at worstSL6 1AL: low flood risk at worstSL6 1AN: low flood risk at worstSL6 1AP: low flood risk at worstSL6 1AQ: low flood risk at worstSL6 1AS: low flood risk at worstSL6 1AW: low flood risk at worstSL6 1AY: low flood risk at worstSL6 1BE: low flood risk at worstSL6 1BP: low flood risk at worstSL6 1BT: low flood risk at worstSL6 1BW: low flood risk at worstSL6 1BX: low flood risk at worstSL6 1DL: low flood risk at worstSL6 1DQ: low flood risk at worstSL6 1FU: low flood risk at worstSL6 1JN: low flood risk at worstSL6 1LF: low flood risk at worstSL6 1NQ: low flood risk at worstSL6 1QG: low flood risk at worstSL6 1QJ: low flood risk at worstSL6 1QR: low flood risk at worstSL6 1QS: low flood risk at worstSL6 1RN: low flood risk at worstSL6 1RR: low flood risk at worstSL6 1RS: low flood risk at worstSL6 1RT: low flood risk at worstSL6 1RU: low flood risk at worstSL6 1RW: low flood risk at worstSL6 1RX: low flood risk at worstSL6 1RY: low flood risk at worstSL6 1SD: low flood risk at worstSL6 1SE: low flood risk at worstSL6 1SH: low flood risk at worstSL6 1SJ: low flood risk at worstSL6 1SU: low flood risk at worstSL6 1SX: low flood risk at worstSL6 1SY: low flood risk at worstSL6 1TB: low flood risk at worstSL6 1TD: low flood risk at worstSL6 1TE: low flood risk at worstSL6 1TG: low flood risk at worstSL6 1TH: low flood risk at worstSL6 1TQ: low flood risk at worstSL6 1TT: low flood risk at worstSL6 1TW: low flood risk at worstSL6 1TX: low flood risk at worstSL6 1UA: low flood risk at worstSL6 1UB: low flood risk at worstSL6 1UD: low flood risk at worstSL6 1UX: low flood risk at worstSL6 1XD: low flood risk at worstSL6 1XY: low flood risk at worstSL6 1YZ: low flood risk at worstSL6 1TR: medium flood risk at worstSL6 1TS: medium flood risk at worstSL6 1TU: medium flood risk at worstSL6 1UF: medium flood risk at worstSL6 1UG: medium flood risk at worstSL6 1UH: medium flood risk at worstSL6 1UQ: medium flood risk at worstSL6 1UR: medium flood risk at worstSL6 1UW: medium flood risk at worstSL6 1XA: medium flood risk at worstSL6 1XB: medium flood risk at worstSL6 1XE: medium flood risk at worstSL6 1XF: medium flood risk at worstSL6 1XG: medium flood risk at worstSL6 1XQ: medium flood risk at worstSL6 1LH: high flood riskSL6 1SB: high flood riskSL6 1TF: high flood riskSL6 1UE: high flood riskSL6 1UN: high flood riskSL6 1UP: high flood riskSL6 1UT: high flood riskSL6 1XH: high flood riskSL6 1XJ: high flood riskSL6 1XL: high flood riskSL6 1XN: high flood riskSL6 1XZ: high flood risk Maidenhead 15 postcodes at high or medium risk, outlined: this goes to SL6 1XZ, the one with most homes and businesses at high risk15 postcodes at high or medium risk Map of every postcode in the SL6 1 sector, by flood risk Of the 239 postcodes in the SL6 1 sector that ONS places, 12 have a home or business at high risk, 15 are at medium risk at worst, 57 are at low risk at worst, 7 are at very low risk only and 148 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 15 postcodes at high or medium risk. Places named: Maidenhead. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Maidenhead
  • A home or business at high risk: 12
  • At medium risk at worst: 15
  • At low risk at worst: 57
  • At very low risk only: 7
  • Not on the at-risk list: 148
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 239 postcodes in the SL6 1 sector that ONS places, 12 have a home or business at high risk, 15 are at medium risk at worst, 57 are at low risk at worst, 7 are at very low risk only and 148 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.

SL6 1LH6 at high riskSL6 1SB6 at high riskSL6 1XZ4 at high riskSL6 1XJ4 at high riskSL6 1XL4 at high riskSL6 1UN3 at high riskSL6 1UT2 at high riskSL6 1UP1 at high riskSL6 1UE1 at high riskSL6 1XN1 at high riskSL6 1TF1 at high riskSL6 1XH1 at high risk

Where the postcodes at high or medium risk lie together

  • 15 postcodes at high or medium risk, outlined on the map. SL6 1XZ, is the one with most homes and businesses at high risk.

What do homes sell for in SL6 1?

Homes in SL6 1 sold for a typical £388,000 in the 12 months to August 2026, across 78 sales, down 3.9% on the 12 months before, HM Land Registry's figures show.

£388,000 typical price, the 12 months to August 2026
£403,625 12 months to August 2025
▼ down 3.9% on the 12 months before
  • Detached £1,220,000 11 sales
  • Semi-detached £477,500 6 sales
  • Terraced £435,000 17 sales
  • Flat or maisonette £317,000 44 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 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 SL6 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.

SL6 1AASL6 1ABSL6 1AFSL6 1AGSL6 1AHSL6 1ALSL6 1ANSL6 1APSL6 1AQSL6 1ARSL6 1ASSL6 1AWSL6 1AXSL6 1AYSL6 1BASL6 1BBSL6 1BDSL6 1BESL6 1BFSL6 1BGSL6 1BNSL6 1BPSL6 1BRSL6 1BSSL6 1BTSL6 1BUSL6 1BWSL6 1BXSL6 1BYSL6 1BZSL6 1DASL6 1DBSL6 1DDSL6 1DESL6 1DFSL6 1DGSL6 1DHSL6 1DJSL6 1DLSL6 1DNSL6 1DPSL6 1DQSL6 1DRSL6 1DSSL6 1DWSL6 1DXSL6 1DYSL6 1DZSL6 1EASL6 1EBSL6 1EDSL6 1EESL6 1EFSL6 1EGSL6 1EHSL6 1EJSL6 1ELSL6 1ENSL6 1EQSL6 1ERSL6 1ESSL6 1EUSL6 1EWSL6 1EXSL6 1EYSL6 1EZSL6 1FASL6 1FBSL6 1FGSL6 1FNSL6 1FQSL6 1FUSL6 1FWSL6 1FYSL6 1GFSL6 1GGSL6 1GQSL6 1HASL6 1HBSL6 1HDSL6 1HESL6 1HFSL6 1HGSL6 1HHSL6 1HJSL6 1HNSL6 1HPSL6 1HQSL6 1HRSL6 1HTSL6 1HUSL6 1HWSL6 1HXSL6 1HZSL6 1JASL6 1JBSL6 1JESL6 1JFSL6 1JGSL6 1JNSL6 1JQSL6 1JRSL6 1JSSL6 1JTSL6 1JUSL6 1JXSL6 1LBSL6 1LDSL6 1LFSL6 1LGSL6 1LHSL6 1LPSL6 1LRSL6 1LTSL6 1LUSL6 1LWSL6 1LYSL6 1NBSL6 1NDSL6 1NFSL6 1NJSL6 1NLSL6 1NQSL6 1NSSL6 1NUSL6 1NXSL6 1NZSL6 1PASL6 1PBSL6 1PDSL6 1PESL6 1PFSL6 1PGSL6 1PHSL6 1PJSL6 1PLSL6 1PNSL6 1PPSL6 1PQSL6 1PRSL6 1PTSL6 1PYSL6 1QASL6 1QBSL6 1QESL6 1QFSL6 1QGSL6 1QHSL6 1QJSL6 1QQSL6 1QRSL6 1QSSL6 1QUSL6 1QWSL6 1QZSL6 1RESL6 1RFSL6 1RGSL6 1RHSL6 1RJSL6 1RLSL6 1RNSL6 1RQSL6 1RRSL6 1RSSL6 1RTSL6 1RUSL6 1RWSL6 1RXSL6 1RYSL6 1SASL6 1SBSL6 1SDSL6 1SESL6 1SFSL6 1SGSL6 1SHSL6 1SJSL6 1SLSL6 1SNSL6 1SPSL6 1SQSL6 1SSSL6 1SUSL6 1SWSL6 1SXSL6 1SYSL6 1SZSL6 1TBSL6 1TDSL6 1TESL6 1TFSL6 1TGSL6 1THSL6 1TJSL6 1TQSL6 1TRSL6 1TSSL6 1TTSL6 1TUSL6 1TWSL6 1TXSL6 1TYSL6 1TZSL6 1UASL6 1UBSL6 1UDSL6 1UESL6 1UFSL6 1UGSL6 1UHSL6 1UNSL6 1UPSL6 1UQSL6 1URSL6 1UTSL6 1UUSL6 1UWSL6 1UXSL6 1UYSL6 1UZSL6 1WTSL6 1XASL6 1XBSL6 1XDSL6 1XESL6 1XFSL6 1XGSL6 1XHSL6 1XJSL6 1XLSL6 1XNSL6 1XQSL6 1XYSL6 1XZSL6 1YQSL6 1YWSL6 1YYSL6 1YZ

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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