SL4 2 postcode sector in the SL4 district

SL4 2 is a sector of the SL4 district: every postcode that starts SL4 2. It has 216 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 SL4 2 sector, by flood risk

Map of every postcode in the SL4 2 sector, by flood risk Of the 216 postcodes in the SL4 2 sector that ONS places, 30 have a home or business at high risk, 20 are at medium risk at worst, 58 are at low risk at worst, 25 are at very low risk only and 83 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 19 postcodes at high or medium risk; 5 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Windsor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A332 SL4 2AA: not on the flood risk listSL4 2AR: not on the flood risk listSL4 2AS: not on the flood risk listSL4 2AX: not on the flood risk listSL4 2AZ: not on the flood risk listSL4 2BA: not on the flood risk listSL4 2BB: not on the flood risk listSL4 2BD: not on the flood risk listSL4 2BE: not on the flood risk listSL4 2BG: not on the flood risk listSL4 2BH: not on the flood risk listSL4 2BJ: not on the flood risk listSL4 2BL: not on the flood risk listSL4 2BQ: not on the flood risk listSL4 2BS: not on the flood risk listSL4 2BT: not on the flood risk listSL4 2BU: not on the flood risk listSL4 2BW: not on the flood risk listSL4 2BY: not on the flood risk listSL4 2BZ: not on the flood risk listSL4 2DA: not on the flood risk listSL4 2DB: not on the flood risk listSL4 2DD: not on the flood risk listSL4 2DE: not on the flood risk listSL4 2DG: not on the flood risk listSL4 2DH: not on the flood risk listSL4 2DJ: not on the flood risk listSL4 2DN: not on the flood risk listSL4 2DP: not on the flood risk listSL4 2DQ: not on the flood risk listSL4 2DR: not on the flood risk listSL4 2DT: not on the flood risk listSL4 2DU: not on the flood risk listSL4 2DW: not on the flood risk listSL4 2DY: not on the flood risk listSL4 2DZ: not on the flood risk listSL4 2ED: not on the flood risk listSL4 2EE: not on the flood risk listSL4 2EG: not on the flood risk listSL4 2EL: not on the flood risk listSL4 2EP: not on the flood risk listSL4 2EQ: not on the flood risk listSL4 2ES: not on the flood risk listSL4 2ET: not on the flood risk listSL4 2EU: not on the flood risk listSL4 2EX: not on the flood risk listSL4 2EY: not on the flood risk listSL4 2EZ: not on the flood risk listSL4 2FA: not on the flood risk listSL4 2FE: not on the flood risk listSL4 2HA: not on the flood risk listSL4 2HD: not on the flood risk listSL4 2HH: not on the flood risk listSL4 2HJ: not on the flood risk listSL4 2HL: not on the flood risk listSL4 2HN: not on the flood risk listSL4 2HP: not on the flood risk listSL4 2HR: not on the flood risk listSL4 2HS: not on the flood risk listSL4 2HT: not on the flood risk listSL4 2HU: not on the flood risk listSL4 2HW: not on the flood risk listSL4 2HX: not on the flood risk listSL4 2HY: not on the flood risk listSL4 2HZ: not on the flood risk listSL4 2JA: not on the flood risk listSL4 2JB: not on the flood risk listSL4 2JD: not on the flood risk listSL4 2LD: not on the flood risk listSL4 2LL: not on the flood risk listSL4 2LW: not on the flood risk listSL4 2QR: not on the flood risk listSL4 2QT: not on the flood risk listSL4 2QZ: not on the flood risk listSL4 2RA: not on the flood risk listSL4 2WJ: not on the flood risk listSL4 2JH: very low flood risk onlySL4 2JS: very low flood risk onlySL4 2LG: very low flood risk onlySL4 2ND: very low flood risk onlySL4 2NF: very low flood risk onlySL4 2PJ: very low flood risk onlySL4 2PN: very low flood risk onlySL4 2PY: very low flood risk onlySL4 2QF: very low flood risk onlySL4 2QU: very low flood risk onlySL4 2RF: very low flood risk onlySL4 2RG: very low flood risk onlySL4 2RH: very low flood risk onlySL4 2RT: very low flood risk onlySL4 2RU: very low flood risk onlySL4 2RX: very low flood risk onlySL4 2RY: very low flood risk onlySL4 2RZ: very low flood risk onlySL4 2SN: very low flood risk onlySL4 2ST: very low flood risk onlySL4 2SY: very low flood risk onlySL4 2QS: low flood risk at worstSL4 2AQ: low flood risk at worstSL4 2QN: low flood risk at worstSL4 2GA: low flood risk at worstSL4 2JN: low flood risk at worstSL4 2JU: low flood risk at worstSL4 2LB: low flood risk at worstSL4 2LF: low flood risk at worstSL4 2LH: low flood risk at worstSL4 2LJ: low flood risk at worstSL4 2LN: low flood risk at worstSL4 2LP: low flood risk at worstSL4 2LS: low flood risk at worstSL4 2LT: low flood risk at worstSL4 2LU: low flood risk at worstSL4 2LX: low flood risk at worstSL4 2LY: low flood risk at worstSL4 2LZ: low flood risk at worstSL4 2NB: low flood risk at worstSL4 2NE: low flood risk at worstSL4 2NG: low flood risk at worstSL4 2NH: low flood risk at worstSL4 2NJ: low flood risk at worstSL4 2NT: low flood risk at worstSL4 2NU: low flood risk at worstSL4 2NZ: low flood risk at worstSL4 2PD: low flood risk at worstSL4 2PF: low flood risk at worstSL4 2PH: low flood risk at worstSL4 2PP: low flood risk at worstSL4 2PR: low flood risk at worstSL4 2PS: low flood risk at worstSL4 2PW: low flood risk at worstSL4 2PX: low flood risk at worstSL4 2PZ: low flood risk at worstSL4 2QA: low flood risk at worstSL4 2QB: low flood risk at worstSL4 2QD: low flood risk at worstSL4 2QE: low flood risk at worstSL4 2QQ: low flood risk at worstSL4 2QJ: low flood risk at worstSL4 2QW: low flood risk at worstSL4 2RL: low flood risk at worstSL4 2RP: low flood risk at worstSL4 2RR: low flood risk at worstSL4 2RS: low flood risk at worstSL4 2SB: low flood risk at worstSL4 2SD: low flood risk at worstSL4 2SH: low flood risk at worstSL4 2SJ: low flood risk at worstSL4 2SQ: low flood risk at worstSL4 2BF: medium flood risk at worstSL4 2JG: medium flood risk at worstSL4 2JJ: medium flood risk at worstSL4 2JR: medium flood risk at worstSL4 2LA: medium flood risk at worstSL4 2LR: medium flood risk at worstSL4 2NP: medium flood risk at worstSL4 2NR: medium flood risk at worstSL4 2NX: medium flood risk at worstSL4 2NY: medium flood risk at worstSL4 2PA: medium flood risk at worstSL4 2PB: medium flood risk at worstSL4 2PT: medium flood risk at worstSL4 2PU: medium flood risk at worstSL4 2RN: medium flood risk at worstSL4 2RW: medium flood risk at worstSL4 2SA: medium flood risk at worstSL4 2SG: medium flood risk at worstSL4 2SL: medium flood risk at worstSL4 2AB: high flood riskSL4 2AD: high flood riskSL4 2AG: high flood riskSL4 2AH: high flood riskSL4 2AJ: high flood riskSL4 2AN: high flood riskSL4 2AP: high flood riskSL4 2AW: high flood riskSL4 2FB: high flood riskSL4 2FF: high flood riskSL4 2JL: high flood riskSL4 2JQ: high flood riskSL4 2JT: high flood riskSL4 2JW: high flood riskSL4 2JX: high flood riskSL4 2JY: high flood riskSL4 2JZ: high flood riskSL4 2NS: high flood riskSL4 2PG: high flood riskSL4 2QG: high flood riskSL4 2QL: high flood riskSL4 2QY: high flood riskSL4 2RB: high flood riskSL4 2RD: high flood riskSL4 2RE: high flood riskSL4 2RJ: high flood riskSL4 2RQ: high flood riskSL4 2SE: high flood risk Windsor 19 postcodes at high or medium risk, outlined: this goes to SL4 2JL, the one with most homes and businesses at high risk19 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to SL4 2AW, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the SL4 2 sector, by flood risk Of the 216 postcodes in the SL4 2 sector that ONS places, 30 have a home or business at high risk, 20 are at medium risk at worst, 58 are at low risk at worst, 25 are at very low risk only and 83 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 19 postcodes at high or medium risk; 5 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Windsor, Old Windsor and Wraysbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A328 WindsorOld Windsor and Wraysbury
  • A home or business at high risk: 30
  • At medium risk at worst: 20
  • At low risk at worst: 58
  • At very low risk only: 25
  • Not on the at-risk list: 83
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 216 postcodes in the SL4 2 sector that ONS places, 30 have a home or business at high risk, 20 are at medium risk at worst, 58 are at low risk at worst, 25 are at very low risk only and 83 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 160 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

30 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.

SL4 2JY39 at high riskSL4 2AW28 at high riskSL4 2AD24 at high riskSL4 2AH18 at high riskSL4 2AG16 at high riskSL4 2JL14 at high riskSL4 2AJ9 at high riskSL4 2RB8 at high riskSL4 2JQ8 at high riskSL4 2NS7 at high riskSL4 2RD7 at high riskSL4 2AB6 at high risk

Where the postcodes at high or medium risk lie together

  • 19 postcodes at high or medium risk, outlined on the map. SL4 2JL, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. SL4 2AW, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. SL4 2RB, is the one with most homes and businesses at high risk.

What do homes sell for in SL4 2?

Homes in SL4 2 sold for a typical £527,500 in the 12 months to August 2026, across 52 sales, down 12.8% on the 12 months before, HM Land Registry's figures show.

£527,500 typical price, the 12 months to August 2026
£605,000 12 months to August 2025
▼ down 12.8% on the 12 months before
  • Detached £775,000 9 sales
  • Semi-detached £531,000 26 sales
  • Terraced £467,000 11 sales
  • Flat or maisonette £252,500 6 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 SL4 2. 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 SL4 2

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.

SL4 2AASL4 2ABSL4 2ADSL4 2AFSL4 2AGSL4 2AHSL4 2AJSL4 2ANSL4 2APSL4 2AQSL4 2ARSL4 2ASSL4 2AWSL4 2AXSL4 2AYSL4 2AZSL4 2BASL4 2BBSL4 2BDSL4 2BESL4 2BFSL4 2BGSL4 2BHSL4 2BJSL4 2BLSL4 2BQSL4 2BSSL4 2BTSL4 2BUSL4 2BWSL4 2BYSL4 2BZSL4 2DASL4 2DBSL4 2DDSL4 2DESL4 2DGSL4 2DHSL4 2DJSL4 2DLSL4 2DNSL4 2DPSL4 2DQSL4 2DRSL4 2DSSL4 2DTSL4 2DUSL4 2DWSL4 2DYSL4 2DZSL4 2EDSL4 2EESL4 2EGSL4 2EJSL4 2ELSL4 2ENSL4 2EPSL4 2EQSL4 2ESSL4 2ETSL4 2EUSL4 2EWSL4 2EXSL4 2EYSL4 2EZSL4 2FASL4 2FBSL4 2FDSL4 2FESL4 2FFSL4 2GASL4 2HASL4 2HDSL4 2HHSL4 2HJSL4 2HLSL4 2HNSL4 2HPSL4 2HRSL4 2HSSL4 2HTSL4 2HUSL4 2HWSL4 2HXSL4 2HYSL4 2HZSL4 2JASL4 2JBSL4 2JDSL4 2JGSL4 2JHSL4 2JJSL4 2JLSL4 2JNSL4 2JQSL4 2JRSL4 2JSSL4 2JTSL4 2JUSL4 2JWSL4 2JXSL4 2JYSL4 2JZSL4 2LASL4 2LBSL4 2LDSL4 2LFSL4 2LGSL4 2LHSL4 2LJSL4 2LLSL4 2LNSL4 2LPSL4 2LQSL4 2LRSL4 2LSSL4 2LTSL4 2LUSL4 2LWSL4 2LXSL4 2LYSL4 2LZSL4 2NASL4 2NBSL4 2NDSL4 2NESL4 2NFSL4 2NGSL4 2NHSL4 2NJSL4 2NPSL4 2NQSL4 2NRSL4 2NSSL4 2NTSL4 2NUSL4 2NWSL4 2NXSL4 2NYSL4 2NZSL4 2PASL4 2PBSL4 2PDSL4 2PFSL4 2PGSL4 2PHSL4 2PJSL4 2PLSL4 2PNSL4 2PPSL4 2PQSL4 2PRSL4 2PSSL4 2PTSL4 2PUSL4 2PWSL4 2PXSL4 2PYSL4 2PZSL4 2QASL4 2QBSL4 2QDSL4 2QESL4 2QFSL4 2QGSL4 2QHSL4 2QJSL4 2QLSL4 2QNSL4 2QQSL4 2QRSL4 2QSSL4 2QTSL4 2QUSL4 2QWSL4 2QXSL4 2QYSL4 2QZSL4 2RASL4 2RBSL4 2RDSL4 2RESL4 2RFSL4 2RGSL4 2RHSL4 2RJSL4 2RLSL4 2RNSL4 2RPSL4 2RQSL4 2RRSL4 2RSSL4 2RTSL4 2RUSL4 2RWSL4 2RXSL4 2RYSL4 2RZSL4 2SASL4 2SBSL4 2SDSL4 2SESL4 2SGSL4 2SHSL4 2SJSL4 2SLSL4 2SNSL4 2SPSL4 2SQSL4 2SRSL4 2SSSL4 2STSL4 2SYSL4 2SZSL4 2WJSL4 2XN

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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