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, and which are new since 2020

Map of every postcode in the SL6 4 sector, by new since 2020 Of the 213 postcodes in the SL6 4 sector that ONS places, 6 are new since 2020 and 207 were in use before 2020. Places named: Maidenhead. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A404(M) SL6 4AA: before 2020SL6 4AD: before 2020SL6 4AE: before 2020SL6 4AF: before 2020SL6 4AJ: before 2020SL6 4AL: before 2020SL6 4AN: before 2020SL6 4AP: before 2020SL6 4AQ: before 2020SL6 4AR: before 2020SL6 4AS: before 2020SL6 4AT: before 2020SL6 4AU: before 2020SL6 4AW: before 2020SL6 4AX: before 2020SL6 4AY: before 2020SL6 4AZ: before 2020SL6 4BA: before 2020SL6 4BB: before 2020SL6 4BD: before 2020SL6 4BG: before 2020SL6 4BH: before 2020SL6 4BJ: before 2020SL6 4BL: before 2020SL6 4BP: before 2020SL6 4BQ: before 2020SL6 4BR: before 2020SL6 4BS: before 2020SL6 4BT: before 2020SL6 4BU: before 2020SL6 4BW: before 2020SL6 4BX: before 2020SL6 4BY: before 2020SL6 4BZ: before 2020SL6 4DA: before 2020SL6 4DB: before 2020SL6 4DD: before 2020SL6 4DE: before 2020SL6 4DF: before 2020SL6 4DG: before 2020SL6 4DH: before 2020SL6 4DJ: before 2020SL6 4DL: before 2020SL6 4DN: before 2020SL6 4DP: before 2020SL6 4DQ: before 2020SL6 4DR: before 2020SL6 4DS: before 2020SL6 4DT: before 2020SL6 4DU: before 2020SL6 4DW: before 2020SL6 4DY: before 2020SL6 4EB: before 2020SL6 4ED: before 2020SL6 4EE: before 2020SL6 4EJ: before 2020SL6 4EL: before 2020SL6 4EP: before 2020SL6 4ER: before 2020SL6 4ET: before 2020SL6 4EU: before 2020SL6 4EX: before 2020SL6 4EY: before 2020SL6 4FL: before 2020SL6 4FN: before 2020SL6 4FQ: before 2020SL6 4FY: before 2020SL6 4FZ: before 2020SL6 4GA: before 2020SL6 4GL: before 2020SL6 4GY: before 2020SL6 4GZ: before 2020SL6 4HA: before 2020SL6 4HB: before 2020SL6 4HE: before 2020SL6 4HF: before 2020SL6 4HG: before 2020SL6 4HH: before 2020SL6 4HJ: before 2020SL6 4HL: before 2020SL6 4HN: before 2020SL6 4HP: before 2020SL6 4HQ: before 2020SL6 4HR: before 2020SL6 4HT: before 2020SL6 4HU: before 2020SL6 4HW: before 2020SL6 4HX: before 2020SL6 4HY: before 2020SL6 4HZ: before 2020SL6 4JA: before 2020SL6 4JB: before 2020SL6 4JD: before 2020SL6 4JE: before 2020SL6 4JF: before 2020SL6 4JG: before 2020SL6 4JJ: before 2020SL6 4JL: before 2020SL6 4JP: before 2020SL6 4JQ: before 2020SL6 4JR: before 2020SL6 4JT: before 2020SL6 4JU: before 2020SL6 4JW: before 2020SL6 4JX: before 2020SL6 4JY: before 2020SL6 4JZ: before 2020SL6 4LA: before 2020SL6 4LB: before 2020SL6 4LE: before 2020SL6 4LF: before 2020SL6 4LG: before 2020SL6 4LH: before 2020SL6 4LJ: before 2020SL6 4LL: before 2020SL6 4LN: before 2020SL6 4LP: before 2020SL6 4LQ: before 2020SL6 4LR: before 2020SL6 4LU: before 2020SL6 4LW: before 2020SL6 4LX: before 2020SL6 4LZ: before 2020SL6 4NA: before 2020SL6 4NB: before 2020SL6 4ND: before 2020SL6 4NE: before 2020SL6 4NF: before 2020SL6 4NG: before 2020SL6 4NH: before 2020SL6 4NJ: before 2020SL6 4NL: before 2020SL6 4NN: before 2020SL6 4NP: before 2020SL6 4NQ: before 2020SL6 4NR: before 2020SL6 4NS: before 2020SL6 4NT: before 2020SL6 4NU: before 2020SL6 4NW: before 2020SL6 4NX: before 2020SL6 4NY: before 2020SL6 4NZ: before 2020SL6 4PA: before 2020SL6 4PB: before 2020SL6 4PD: before 2020SL6 4PE: before 2020SL6 4PF: before 2020SL6 4PH: before 2020SL6 4PJ: before 2020SL6 4PL: before 2020SL6 4PN: before 2020SL6 4PP: before 2020SL6 4PQ: before 2020SL6 4PR: before 2020SL6 4PS: before 2020SL6 4PU: before 2020SL6 4PX: before 2020SL6 4PY: before 2020SL6 4PZ: before 2020SL6 4QB: before 2020SL6 4QD: before 2020SL6 4QE: before 2020SL6 4QF: before 2020SL6 4QG: before 2020SL6 4QH: before 2020SL6 4QJ: before 2020SL6 4QL: before 2020SL6 4QP: before 2020SL6 4QQ: before 2020SL6 4QR: before 2020SL6 4QS: before 2020SL6 4QT: before 2020SL6 4QU: before 2020SL6 4QW: before 2020SL6 4QX: before 2020SL6 4QY: before 2020SL6 4QZ: before 2020SL6 4RA: before 2020SL6 4RB: before 2020SL6 4RD: before 2020SL6 4RE: before 2020SL6 4RF: before 2020SL6 4RG: before 2020SL6 4RH: before 2020SL6 4RJ: before 2020SL6 4RL: before 2020SL6 4RN: before 2020SL6 4RP: before 2020SL6 4RQ: before 2020SL6 4RR: before 2020SL6 4RS: before 2020SL6 4RT: before 2020SL6 4RW: before 2020SL6 4RY: before 2020SL6 4SA: before 2020SL6 4SB: before 2020SL6 4TA: before 2020SL6 4TB: before 2020SL6 4UB: before 2020SL6 4UD: before 2020SL6 4UF: before 2020SL6 4UX: before 2020SL6 4UY: before 2020SL6 4UZ: before 2020SL6 4FU: new since 2020SL6 4FW: new since 2020SL6 4FX: new since 2020SL6 4GB: new since 2020SL6 4GD: new since 2020SL6 4GE: new since 2020 Maidenhead Map of every postcode in the SL6 4 sector, by new since 2020 Of the 213 postcodes in the SL6 4 sector that ONS places, 6 are new since 2020 and 207 were in use before 2020. Places named: Maidenhead. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Maidenhead
  • New since 2020: 6
  • In use before 2020: 207

Of the 213 postcodes in the SL6 4 sector that ONS places, 6 are new since 2020 and 207 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 5 newest postcodes

SL6 4GDApril 2024SL6 4GEApril 2024SL6 4FXMay 2022SL6 4FWApril 2021SL6 4GBNovember 2020

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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