SL6 5 postcode sector in the SL6 district

SL6 5 is a sector of the SL6 district: every postcode that starts SL6 5. It has 148 postcodes in use, 2 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 5 sector, by flood risk

Map of every postcode in the SL6 5 sector, by flood risk Of the 148 postcodes in the SL6 5 sector that ONS places, 8 have a home or business at high risk, 1 are at medium risk at worst, 10 are at low risk at worst, 1 are at very low risk only and 128 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 1 km. A404 SL6 5AA: not on the flood risk listSL6 5AB: not on the flood risk listSL6 5AE: not on the flood risk listSL6 5AF: not on the flood risk listSL6 5AH: not on the flood risk listSL6 5AJ: not on the flood risk listSL6 5AN: not on the flood risk listSL6 5AP: not on the flood risk listSL6 5AQ: not on the flood risk listSL6 5AR: not on the flood risk listSL6 5AS: not on the flood risk listSL6 5AT: not on the flood risk listSL6 5AU: not on the flood risk listSL6 5AW: not on the flood risk listSL6 5BB: not on the flood risk listSL6 5BD: not on the flood risk listSL6 5BE: not on the flood risk listSL6 5BF: not on the flood risk listSL6 5BG: not on the flood risk listSL6 5BJ: not on the flood risk listSL6 5BL: not on the flood risk listSL6 5BN: not on the flood risk listSL6 5BP: not on the flood risk listSL6 5BQ: not on the flood risk listSL6 5BZ: not on the flood risk listSL6 5DA: not on the flood risk listSL6 5DB: not on the flood risk listSL6 5DD: not on the flood risk listSL6 5DF: not on the flood risk listSL6 5DG: not on the flood risk listSL6 5DH: not on the flood risk listSL6 5DL: not on the flood risk listSL6 5DN: not on the flood risk listSL6 5DP: not on the flood risk listSL6 5DQ: not on the flood risk listSL6 5DR: not on the flood risk listSL6 5DS: not on the flood risk listSL6 5DT: not on the flood risk listSL6 5DU: not on the flood risk listSL6 5DW: not on the flood risk listSL6 5DX: not on the flood risk listSL6 5DY: not on the flood risk listSL6 5DZ: not on the flood risk listSL6 5EA: not on the flood risk listSL6 5EB: not on the flood risk listSL6 5ED: not on the flood risk listSL6 5EE: not on the flood risk listSL6 5EF: not on the flood risk listSL6 5EG: not on the flood risk listSL6 5EJ: not on the flood risk listSL6 5EL: not on the flood risk listSL6 5EN: not on the flood risk listSL6 5EP: not on the flood risk listSL6 5EQ: not on the flood risk listSL6 5ER: not on the flood risk listSL6 5ES: not on the flood risk listSL6 5ET: not on the flood risk listSL6 5EU: not on the flood risk listSL6 5EW: not on the flood risk listSL6 5EX: not on the flood risk listSL6 5EY: not on the flood risk listSL6 5EZ: not on the flood risk listSL6 5FB: not on the flood risk listSL6 5FD: not on the flood risk listSL6 5FF: not on the flood risk listSL6 5FG: not on the flood risk listSL6 5FH: not on the flood risk listSL6 5FJ: not on the flood risk listSL6 5FL: not on the flood risk listSL6 5GY: not on the flood risk listSL6 5HA: not on the flood risk listSL6 5HB: not on the flood risk listSL6 5HD: not on the flood risk listSL6 5HE: not on the flood risk listSL6 5HJ: not on the flood risk listSL6 5HL: not on the flood risk listSL6 5HN: not on the flood risk listSL6 5HP: not on the flood risk listSL6 5HQ: not on the flood risk listSL6 5HR: not on the flood risk listSL6 5HS: not on the flood risk listSL6 5HT: not on the flood risk listSL6 5HU: not on the flood risk listSL6 5HX: not on the flood risk listSL6 5HY: not on the flood risk listSL6 5HZ: not on the flood risk listSL6 5JA: not on the flood risk listSL6 5JB: not on the flood risk listSL6 5JD: not on the flood risk listSL6 5JE: not on the flood risk listSL6 5JF: not on the flood risk listSL6 5JG: not on the flood risk listSL6 5JH: not on the flood risk listSL6 5JJ: not on the flood risk listSL6 5JL: not on the flood risk listSL6 5JN: not on the flood risk listSL6 5JP: not on the flood risk listSL6 5JQ: not on the flood risk listSL6 5JR: not on the flood risk listSL6 5JS: not on the flood risk listSL6 5JT: not on the flood risk listSL6 5JU: not on the flood risk listSL6 5JW: not on the flood risk listSL6 5JY: not on the flood risk listSL6 5JZ: not on the flood risk listSL6 5LH: not on the flood risk listSL6 5LJ: not on the flood risk listSL6 5NQ: not on the flood risk listSL6 5WR: not on the flood risk listSL6 5NN: very low flood risk onlySL6 5LE: low flood risk at worstSL6 5LL: low flood risk at worstSL6 5LN: low flood risk at worstSL6 5LU: low flood risk at worstSL6 5LW: low flood risk at worstSL6 5LY: low flood risk at worstSL6 5LZ: low flood risk at worstSL6 5NH: low flood risk at worstSL6 5NL: low flood risk at worstSL6 5PB: low flood risk at worstSL6 5NS: medium flood risk at worstSL6 5LT: high flood riskSL6 5LX: high flood riskSL6 5NA: high flood riskSL6 5NB: high flood riskSL6 5ND: high flood riskSL6 5NE: high flood riskSL6 5NF: high flood riskSL6 5NG: high flood risk Maidenhead Map of every postcode in the SL6 5 sector, by flood risk Of the 148 postcodes in the SL6 5 sector that ONS places, 8 have a home or business at high risk, 1 are at medium risk at worst, 10 are at low risk at worst, 1 are at very low risk only and 128 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 2.5 km. A4155A404(M) Maidenhead
  • A home or business at high risk: 8
  • At medium risk at worst: 1
  • At low risk at worst: 10
  • At very low risk only: 1
  • Not on the at-risk list: 128

Of the 148 postcodes in the SL6 5 sector that ONS places, 8 have a home or business at high risk, 1 are at medium risk at worst, 10 are at low risk at worst, 1 are at very low risk only and 128 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.

What do homes sell for in SL6 5?

Homes in SL6 5 sold for a typical £585,000 in the 12 months to August 2026, across 57 sales, down 1.3% on the 12 months before, HM Land Registry's figures show.

£585,000 typical price, the 12 months to August 2026
£592,500 12 months to August 2025
▼ down 1.3% on the 12 months before
  • Detached £845,000 25 sales
  • Semi-detached £510,000 21 sales
  • Terraced £511,250 10 sales
  • Flat or maisonette 1 sale, too few to price

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 5. 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 5

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.

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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