SL2 4 postcode sector in the SL2 district

SL2 4 is a sector of the SL2 district: every postcode that starts SL2 4. It has 173 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 SL2 4 sector, by flood risk

Map of every postcode in the SL2 4 sector, by flood risk Of the 173 postcodes in the SL2 4 sector that ONS places, 1 have a home or business at high risk and 172 are not on the Environment Agency's at-risk list. Places named: Slough, Farnham Common and Farnham Royal, Stoke Poges. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M40 SL2 4AA: not on the flood risk listSL2 4AB: not on the flood risk listSL2 4AD: not on the flood risk listSL2 4AE: not on the flood risk listSL2 4AF: not on the flood risk listSL2 4AG: not on the flood risk listSL2 4AH: not on the flood risk listSL2 4AJ: not on the flood risk listSL2 4AL: not on the flood risk listSL2 4AN: not on the flood risk listSL2 4AP: not on the flood risk listSL2 4AQ: not on the flood risk listSL2 4AR: not on the flood risk listSL2 4AS: not on the flood risk listSL2 4AT: not on the flood risk listSL2 4AU: not on the flood risk listSL2 4AX: not on the flood risk listSL2 4AY: not on the flood risk listSL2 4AZ: not on the flood risk listSL2 4BA: not on the flood risk listSL2 4BB: not on the flood risk listSL2 4BD: not on the flood risk listSL2 4BG: not on the flood risk listSL2 4BH: not on the flood risk listSL2 4BN: not on the flood risk listSL2 4BP: not on the flood risk listSL2 4BQ: not on the flood risk listSL2 4BS: not on the flood risk listSL2 4BT: not on the flood risk listSL2 4BU: not on the flood risk listSL2 4BW: not on the flood risk listSL2 4BX: not on the flood risk listSL2 4BY: not on the flood risk listSL2 4BZ: not on the flood risk listSL2 4DA: not on the flood risk listSL2 4DD: not on the flood risk listSL2 4DE: not on the flood risk listSL2 4DF: not on the flood risk listSL2 4DG: not on the flood risk listSL2 4DH: not on the flood risk listSL2 4DN: not on the flood risk listSL2 4DP: not on the flood risk listSL2 4DQ: not on the flood risk listSL2 4DR: not on the flood risk listSL2 4DS: not on the flood risk listSL2 4DW: not on the flood risk listSL2 4DX: not on the flood risk listSL2 4DY: not on the flood risk listSL2 4EA: not on the flood risk listSL2 4EB: not on the flood risk listSL2 4EE: not on the flood risk listSL2 4EF: not on the flood risk listSL2 4EG: not on the flood risk listSL2 4EH: not on the flood risk listSL2 4EJ: not on the flood risk listSL2 4EL: not on the flood risk listSL2 4EP: not on the flood risk listSL2 4ER: not on the flood risk listSL2 4ES: not on the flood risk listSL2 4ET: not on the flood risk listSL2 4EU: not on the flood risk listSL2 4EW: not on the flood risk listSL2 4EX: not on the flood risk listSL2 4EY: not on the flood risk listSL2 4EZ: not on the flood risk listSL2 4FA: not on the flood risk listSL2 4FB: not on the flood risk listSL2 4FE: not on the flood risk listSL2 4FF: not on the flood risk listSL2 4FH: not on the flood risk listSL2 4FJ: not on the flood risk listSL2 4FL: not on the flood risk listSL2 4FN: not on the flood risk listSL2 4FP: not on the flood risk listSL2 4FQ: not on the flood risk listSL2 4FR: not on the flood risk listSL2 4GA: not on the flood risk listSL2 4GB: not on the flood risk listSL2 4GD: not on the flood risk listSL2 4GE: not on the flood risk listSL2 4GF: not on the flood risk listSL2 4GG: not on the flood risk listSL2 4GQ: not on the flood risk listSL2 4HA: not on the flood risk listSL2 4HD: not on the flood risk listSL2 4HE: not on the flood risk listSL2 4HF: not on the flood risk listSL2 4HH: not on the flood risk listSL2 4HJ: not on the flood risk listSL2 4HL: not on the flood risk listSL2 4HN: not on the flood risk listSL2 4HP: not on the flood risk listSL2 4HQ: not on the flood risk listSL2 4HR: not on the flood risk listSL2 4HT: not on the flood risk listSL2 4HX: not on the flood risk listSL2 4HY: not on the flood risk listSL2 4HZ: not on the flood risk listSL2 4JD: not on the flood risk listSL2 4JF: not on the flood risk listSL2 4JG: not on the flood risk listSL2 4JH: not on the flood risk listSL2 4JJ: not on the flood risk listSL2 4JP: not on the flood risk listSL2 4JQ: not on the flood risk listSL2 4JR: not on the flood risk listSL2 4JS: not on the flood risk listSL2 4JT: not on the flood risk listSL2 4JW: not on the flood risk listSL2 4JX: not on the flood risk listSL2 4LD: not on the flood risk listSL2 4LE: not on the flood risk listSL2 4LF: not on the flood risk listSL2 4LG: not on the flood risk listSL2 4LH: not on the flood risk listSL2 4LJ: not on the flood risk listSL2 4LL: not on the flood risk listSL2 4LN: not on the flood risk listSL2 4LP: not on the flood risk listSL2 4LQ: not on the flood risk listSL2 4LR: not on the flood risk listSL2 4LS: not on the flood risk listSL2 4LT: not on the flood risk listSL2 4LU: not on the flood risk listSL2 4LX: not on the flood risk listSL2 4LZ: not on the flood risk listSL2 4NA: not on the flood risk listSL2 4NB: not on the flood risk listSL2 4ND: not on the flood risk listSL2 4NE: not on the flood risk listSL2 4NJ: not on the flood risk listSL2 4NL: not on the flood risk listSL2 4NN: not on the flood risk listSL2 4NP: not on the flood risk listSL2 4NT: not on the flood risk listSL2 4NU: not on the flood risk listSL2 4NZ: not on the flood risk listSL2 4PA: not on the flood risk listSL2 4PB: not on the flood risk listSL2 4PD: not on the flood risk listSL2 4PE: not on the flood risk listSL2 4PH: not on the flood risk listSL2 4PJ: not on the flood risk listSL2 4PP: not on the flood risk listSL2 4PS: not on the flood risk listSL2 4PT: not on the flood risk listSL2 4PU: not on the flood risk listSL2 4PW: not on the flood risk listSL2 4PX: not on the flood risk listSL2 4PY: not on the flood risk listSL2 4PZ: not on the flood risk listSL2 4QA: not on the flood risk listSL2 4QB: not on the flood risk listSL2 4QE: not on the flood risk listSL2 4QF: not on the flood risk listSL2 4QG: not on the flood risk listSL2 4QJ: not on the flood risk listSL2 4QL: not on the flood risk listSL2 4QN: not on the flood risk listSL2 4QR: not on the flood risk listSL2 4QS: not on the flood risk listSL2 4QT: not on the flood risk listSL2 4QU: not on the flood risk listSL2 4QX: not on the flood risk listSL2 4XJ: not on the flood risk listSL2 4PG: high flood risk SloughFarnham Common and Farnham RoyalStoke Poges Map of every postcode in the SL2 4 sector, by flood risk Of the 173 postcodes in the SL2 4 sector that ONS places, 1 have a home or business at high risk and 172 are not on the Environment Agency's at-risk list. Places named: Slough, Farnham Common and Farnham Royal, Stoke Poges. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A412M40A4 SloughFarnham Common and Farnham RoyalStoke Poges
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 172

Of the 173 postcodes in the SL2 4 sector that ONS places, 1 have a home or business at high risk and 172 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

The postcodes at high risk

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

SL2 4PG3 at high risk

What do homes sell for in SL2 4?

Homes in SL2 4 sold for a typical £632,500 in the 12 months to August 2026, across 60 sales, up 18.8% on the 12 months before, HM Land Registry's figures show.

£632,500 typical price, the 12 months to August 2026
£532,500 12 months to August 2025
▲ up 18.8% on the 12 months before
  • Detached £1,000,000 19 sales
  • Semi-detached £620,000 26 sales
  • Terraced 2 sales, too few to price
  • Flat or maisonette £297,500 13 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 SL2 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 SL2 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.

SL2 4AASL2 4ABSL2 4ADSL2 4AESL2 4AFSL2 4AGSL2 4AHSL2 4AJSL2 4ALSL2 4ANSL2 4APSL2 4AQSL2 4ARSL2 4ASSL2 4ATSL2 4AUSL2 4AXSL2 4AYSL2 4AZSL2 4BASL2 4BBSL2 4BDSL2 4BGSL2 4BHSL2 4BNSL2 4BPSL2 4BQSL2 4BSSL2 4BTSL2 4BUSL2 4BWSL2 4BXSL2 4BYSL2 4BZSL2 4DASL2 4DDSL2 4DESL2 4DFSL2 4DGSL2 4DHSL2 4DNSL2 4DPSL2 4DQSL2 4DRSL2 4DSSL2 4DWSL2 4DXSL2 4DYSL2 4EASL2 4EBSL2 4EESL2 4EFSL2 4EGSL2 4EHSL2 4EJSL2 4ELSL2 4EPSL2 4ERSL2 4ESSL2 4ETSL2 4EUSL2 4EWSL2 4EXSL2 4EYSL2 4EZSL2 4FASL2 4FBSL2 4FDSL2 4FESL2 4FFSL2 4FHSL2 4FJSL2 4FLSL2 4FNSL2 4FPSL2 4FQSL2 4FRSL2 4GASL2 4GBSL2 4GDSL2 4GESL2 4GFSL2 4GGSL2 4GQSL2 4HASL2 4HDSL2 4HESL2 4HFSL2 4HHSL2 4HJSL2 4HLSL2 4HNSL2 4HPSL2 4HQSL2 4HRSL2 4HTSL2 4HWSL2 4HXSL2 4HYSL2 4HZSL2 4JDSL2 4JFSL2 4JGSL2 4JHSL2 4JJSL2 4JPSL2 4JQSL2 4JRSL2 4JSSL2 4JTSL2 4JUSL2 4JWSL2 4JXSL2 4LDSL2 4LESL2 4LFSL2 4LGSL2 4LHSL2 4LJSL2 4LLSL2 4LNSL2 4LPSL2 4LQSL2 4LRSL2 4LSSL2 4LTSL2 4LUSL2 4LWSL2 4LXSL2 4LZSL2 4NASL2 4NBSL2 4NDSL2 4NESL2 4NJSL2 4NLSL2 4NNSL2 4NPSL2 4NTSL2 4NUSL2 4NZSL2 4PASL2 4PBSL2 4PDSL2 4PESL2 4PGSL2 4PHSL2 4PJSL2 4PPSL2 4PSSL2 4PTSL2 4PUSL2 4PWSL2 4PXSL2 4PYSL2 4PZSL2 4QASL2 4QBSL2 4QESL2 4QFSL2 4QGSL2 4QJSL2 4QLSL2 4QNSL2 4QRSL2 4QSSL2 4QTSL2 4QUSL2 4QXSL2 4XJSL2 4YPSL2 4YUSL2 4ZN

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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