SL6 4 postcode sector in the SL6 district

SL6 4 is a sector of the SL6 district: every postcode that starts SL6 4. It has 213 postcodes in use, 8 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 4 sector, by flood risk

Map of every postcode in the SL6 4 sector, by flood risk Of the 213 postcodes in the SL6 4 sector that ONS places, 213 are not on the Environment Agency's at-risk list. Places named: Maidenhead. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A404(M) SL6 4AA: not on the flood risk listSL6 4AD: not on the flood risk listSL6 4AE: not on the flood risk listSL6 4AF: not on the flood risk listSL6 4AJ: not on the flood risk listSL6 4AL: not on the flood risk listSL6 4AN: not on the flood risk listSL6 4AP: not on the flood risk listSL6 4AQ: not on the flood risk listSL6 4AR: not on the flood risk listSL6 4AS: not on the flood risk listSL6 4AT: not on the flood risk listSL6 4AU: not on the flood risk listSL6 4AW: not on the flood risk listSL6 4AX: not on the flood risk listSL6 4AY: not on the flood risk listSL6 4AZ: not on the flood risk listSL6 4BA: not on the flood risk listSL6 4BB: not on the flood risk listSL6 4BD: not on the flood risk listSL6 4BG: not on the flood risk listSL6 4BH: not on the flood risk listSL6 4BJ: not on the flood risk listSL6 4BL: not on the flood risk listSL6 4BP: not on the flood risk listSL6 4BQ: not on the flood risk listSL6 4BR: not on the flood risk listSL6 4BS: not on the flood risk listSL6 4BT: not on the flood risk listSL6 4BU: not on the flood risk listSL6 4BW: not on the flood risk listSL6 4BX: not on the flood risk listSL6 4BY: not on the flood risk listSL6 4BZ: not on the flood risk listSL6 4DA: not on the flood risk listSL6 4DB: not on the flood risk listSL6 4DD: not on the flood risk listSL6 4DE: not on the flood risk listSL6 4DF: not on the flood risk listSL6 4DG: not on the flood risk listSL6 4DH: not on the flood risk listSL6 4DJ: not on the flood risk listSL6 4DL: not on the flood risk listSL6 4DN: not on the flood risk listSL6 4DP: not on the flood risk listSL6 4DQ: not on the flood risk listSL6 4DR: not on the flood risk listSL6 4DS: not on the flood risk listSL6 4DT: not on the flood risk listSL6 4DU: not on the flood risk listSL6 4DW: not on the flood risk listSL6 4DY: not on the flood risk listSL6 4EB: not on the flood risk listSL6 4ED: not on the flood risk listSL6 4EE: not on the flood risk listSL6 4EJ: not on the flood risk listSL6 4EL: not on the flood risk listSL6 4EP: not on the flood risk listSL6 4ER: not on the flood risk listSL6 4ET: not on the flood risk listSL6 4EU: not on the flood risk listSL6 4EX: not on the flood risk listSL6 4EY: not on the flood risk listSL6 4FL: not on the flood risk listSL6 4FN: not on the flood risk listSL6 4FQ: not on the flood risk listSL6 4FU: not on the flood risk listSL6 4FW: not on the flood risk listSL6 4FX: not on the flood risk listSL6 4FY: not on the flood risk listSL6 4FZ: not on the flood risk listSL6 4GA: not on the flood risk listSL6 4GB: not on the flood risk listSL6 4GD: not on the flood risk listSL6 4GE: not on the flood risk listSL6 4GL: not on the flood risk listSL6 4GY: not on the flood risk listSL6 4GZ: not on the flood risk listSL6 4HA: not on the flood risk listSL6 4HB: not on the flood risk listSL6 4HE: not on the flood risk listSL6 4HF: not on the flood risk listSL6 4HG: not on the flood risk listSL6 4HH: not on the flood risk listSL6 4HJ: not on the flood risk listSL6 4HL: not on the flood risk listSL6 4HN: not on the flood risk listSL6 4HP: not on the flood risk listSL6 4HQ: not on the flood risk listSL6 4HR: not on the flood risk listSL6 4HT: not on the flood risk listSL6 4HU: not on the flood risk listSL6 4HW: not on the flood risk listSL6 4HX: not on the flood risk listSL6 4HY: not on the flood risk listSL6 4HZ: not on the flood risk listSL6 4JA: not on the flood risk listSL6 4JB: not on the flood risk listSL6 4JD: not on the flood risk listSL6 4JE: not on the flood risk listSL6 4JF: not on the flood risk listSL6 4JG: not on the flood risk listSL6 4JJ: not on the flood risk listSL6 4JL: not on the flood risk listSL6 4JP: not on the flood risk listSL6 4JQ: not on the flood risk listSL6 4JR: not on the flood risk listSL6 4JT: not on the flood risk listSL6 4JU: not on the flood risk listSL6 4JW: not on the flood risk listSL6 4JX: not on the flood risk listSL6 4JY: not on the flood risk listSL6 4JZ: not on the flood risk listSL6 4LA: not on the flood risk listSL6 4LB: not on the flood risk listSL6 4LE: not on the flood risk listSL6 4LF: not on the flood risk listSL6 4LG: not on the flood risk listSL6 4LH: not on the flood risk listSL6 4LJ: not on the flood risk listSL6 4LL: not on the flood risk listSL6 4LN: not on the flood risk listSL6 4LP: not on the flood risk listSL6 4LQ: not on the flood risk listSL6 4LR: not on the flood risk listSL6 4LU: not on the flood risk listSL6 4LW: not on the flood risk listSL6 4LX: not on the flood risk listSL6 4LZ: not on the flood risk listSL6 4NA: not on the flood risk listSL6 4NB: not on the flood risk listSL6 4ND: not on the flood risk listSL6 4NE: not on the flood risk listSL6 4NF: not on the flood risk listSL6 4NG: not on the flood risk listSL6 4NH: not on the flood risk listSL6 4NJ: not on the flood risk listSL6 4NL: not on the flood risk listSL6 4NN: not on the flood risk listSL6 4NP: not on the flood risk listSL6 4NQ: not on the flood risk listSL6 4NR: not on the flood risk listSL6 4NS: not on the flood risk listSL6 4NT: not on the flood risk listSL6 4NU: not on the flood risk listSL6 4NW: not on the flood risk listSL6 4NX: not on the flood risk listSL6 4NY: not on the flood risk listSL6 4NZ: not on the flood risk listSL6 4PA: not on the flood risk listSL6 4PB: not on the flood risk listSL6 4PD: not on the flood risk listSL6 4PE: not on the flood risk listSL6 4PF: not on the flood risk listSL6 4PH: not on the flood risk listSL6 4PJ: not on the flood risk listSL6 4PL: not on the flood risk listSL6 4PN: not on the flood risk listSL6 4PP: not on the flood risk listSL6 4PQ: not on the flood risk listSL6 4PR: not on the flood risk listSL6 4PS: not on the flood risk listSL6 4PU: not on the flood risk listSL6 4PX: not on the flood risk listSL6 4PY: not on the flood risk listSL6 4PZ: not on the flood risk listSL6 4QB: not on the flood risk listSL6 4QD: not on the flood risk listSL6 4QE: not on the flood risk listSL6 4QF: not on the flood risk listSL6 4QG: not on the flood risk listSL6 4QH: not on the flood risk listSL6 4QJ: not on the flood risk listSL6 4QL: not on the flood risk listSL6 4QP: not on the flood risk listSL6 4QQ: not on the flood risk listSL6 4QR: not on the flood risk listSL6 4QS: not on the flood risk listSL6 4QT: not on the flood risk listSL6 4QU: not on the flood risk listSL6 4QW: not on the flood risk listSL6 4QX: not on the flood risk listSL6 4QY: not on the flood risk listSL6 4QZ: not on the flood risk listSL6 4RA: not on the flood risk listSL6 4RB: not on the flood risk listSL6 4RD: not on the flood risk listSL6 4RE: not on the flood risk listSL6 4RF: not on the flood risk listSL6 4RG: not on the flood risk listSL6 4RH: not on the flood risk listSL6 4RJ: not on the flood risk listSL6 4RL: not on the flood risk listSL6 4RN: not on the flood risk listSL6 4RP: not on the flood risk listSL6 4RQ: not on the flood risk listSL6 4RR: not on the flood risk listSL6 4RS: not on the flood risk listSL6 4RT: not on the flood risk listSL6 4RW: not on the flood risk listSL6 4RY: not on the flood risk listSL6 4SA: not on the flood risk listSL6 4SB: not on the flood risk listSL6 4TA: not on the flood risk listSL6 4TB: not on the flood risk listSL6 4UB: not on the flood risk listSL6 4UD: not on the flood risk listSL6 4UF: not on the flood risk listSL6 4UX: not on the flood risk listSL6 4UY: not on the flood risk listSL6 4UZ: not on the flood risk list Maidenhead Map of every postcode in the SL6 4 sector, by flood risk Of the 213 postcodes in the SL6 4 sector that ONS places, 213 are not on the Environment Agency's at-risk list. 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: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 213

Of the 213 postcodes in the SL6 4 sector that ONS places, 213 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. 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

What do homes sell for in SL6 4?

Homes in SL6 4 sold for a typical £447,500 in the 12 months to August 2026, across 66 sales, down 5.8% on the 12 months before, HM Land Registry's figures show.

£447,500 typical price, the 12 months to August 2026
£475,000 12 months to August 2025
▼ down 5.8% on the 12 months before
  • Detached £867,500 8 sales
  • Semi-detached £521,500 22 sales
  • Terraced £427,500 20 sales
  • Flat or maisonette £271,500 16 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 4. 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 4

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 4AASL6 4ADSL6 4AESL6 4AFSL6 4AJSL6 4ALSL6 4ANSL6 4APSL6 4AQSL6 4ARSL6 4ASSL6 4ATSL6 4AUSL6 4AWSL6 4AXSL6 4AYSL6 4AZSL6 4BASL6 4BBSL6 4BDSL6 4BGSL6 4BHSL6 4BJSL6 4BLSL6 4BPSL6 4BQSL6 4BRSL6 4BSSL6 4BTSL6 4BUSL6 4BWSL6 4BXSL6 4BYSL6 4BZSL6 4DASL6 4DBSL6 4DDSL6 4DESL6 4DFSL6 4DGSL6 4DHSL6 4DJSL6 4DLSL6 4DNSL6 4DPSL6 4DQSL6 4DRSL6 4DSSL6 4DTSL6 4DUSL6 4DWSL6 4DYSL6 4EBSL6 4EDSL6 4EESL6 4EJSL6 4ELSL6 4EPSL6 4ERSL6 4ETSL6 4EUSL6 4EXSL6 4EYSL6 4FLSL6 4FNSL6 4FQSL6 4FUSL6 4FWSL6 4FXSL6 4FYSL6 4FZSL6 4GASL6 4GBSL6 4GDSL6 4GESL6 4GLSL6 4GYSL6 4GZSL6 4HASL6 4HBSL6 4HESL6 4HFSL6 4HGSL6 4HHSL6 4HJSL6 4HLSL6 4HNSL6 4HPSL6 4HQSL6 4HRSL6 4HTSL6 4HUSL6 4HWSL6 4HXSL6 4HYSL6 4HZSL6 4JASL6 4JBSL6 4JDSL6 4JESL6 4JFSL6 4JGSL6 4JJSL6 4JLSL6 4JPSL6 4JQSL6 4JRSL6 4JTSL6 4JUSL6 4JWSL6 4JXSL6 4JYSL6 4JZSL6 4LASL6 4LBSL6 4LESL6 4LFSL6 4LGSL6 4LHSL6 4LJSL6 4LLSL6 4LNSL6 4LPSL6 4LQSL6 4LRSL6 4LUSL6 4LWSL6 4LXSL6 4LZSL6 4NASL6 4NBSL6 4NDSL6 4NESL6 4NFSL6 4NGSL6 4NHSL6 4NJSL6 4NLSL6 4NNSL6 4NPSL6 4NQSL6 4NRSL6 4NSSL6 4NTSL6 4NUSL6 4NWSL6 4NXSL6 4NYSL6 4NZSL6 4PASL6 4PBSL6 4PDSL6 4PESL6 4PFSL6 4PHSL6 4PJSL6 4PLSL6 4PNSL6 4PPSL6 4PQSL6 4PRSL6 4PSSL6 4PUSL6 4PXSL6 4PYSL6 4PZSL6 4QBSL6 4QDSL6 4QESL6 4QFSL6 4QGSL6 4QHSL6 4QJSL6 4QLSL6 4QPSL6 4QQSL6 4QRSL6 4QSSL6 4QTSL6 4QUSL6 4QWSL6 4QXSL6 4QYSL6 4QZSL6 4RASL6 4RBSL6 4RDSL6 4RESL6 4RFSL6 4RGSL6 4RHSL6 4RJSL6 4RLSL6 4RNSL6 4RPSL6 4RQSL6 4RRSL6 4RSSL6 4RTSL6 4RWSL6 4RYSL6 4SASL6 4SBSL6 4TASL6 4TBSL6 4UBSL6 4UDSL6 4UFSL6 4UXSL6 4UYSL6 4UZSL6 4XESL6 4XF

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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