SL postcode area: Slough
The SL postcode area is known as the Slough area. It is every postcode that begins SL followed by a number. It has 12 districts and 10,672 postcodes in use, across 7 councils.
Homes in the SL area sold for a typical £510,000 in the 12 months to August 2026. By district, that runs from £395,000 in SL1 (Slough) to £834,650 in SL9 (Chalfont St Peter).
For the town itself, see Slough postcodes.
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. The name is the one the area is commonly known by; it is not part of the ONS data. See all our data sources
Where it is
Latitude 51.5164
Longitude -0.6442
This is the middle of the postcodes in the SL area. An area can be many miles across, and we do not draw its boundary.
Open this area on OpenStreetMapSource: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. How we use it
What do homes cost in the SL area?
Homes in the SL area sold for a typical £510,000 in the 12 months to August 2026, across 3,174 sales, up 1% on the 12 months before, HM Land Registry's figures show.
- Detached £875,000 826 sales
- Semi-detached £550,000 814 sales
- Terraced £450,000 778 sales
- Flat or maisonette £283,250 756 sales
Each bar is that kind's typical price, against the most expensive kind here.
Standard sales of homes at market value at the area's postcodes. A typical price is the median, the middle sale. Each district below has its own, and each postcode page the figure for its sector.
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
How do the SL districts compare?
A district is the first half of a postcode. Each row gives its typical home price, how many of its postcodes can get gigabit broadband for every home, and how many have a home at flood risk. Each opens the district.
- SL0 postcode district: Iver HeathBuckinghamshire, Slough 345 postcodes Typical price£530,000 Gigabit, every home131 of 342 At flood risk11 of 345
- SL1 postcode district: SloughSlough, Buckinghamshire 1,654 postcodes Typical price£395,000 Gigabit, every home1,298 of 1,497 At flood risk266 of 1,654
- SL2 postcode district: SloughSlough, Buckinghamshire 1,132 postcodes Typical price£450,000 Gigabit, every home886 of 1,112 At flood risk96 of 1,132
- SL3 postcode district: SloughSlough, Windsor and Maidenhead, Buckinghamshire 1,077 postcodes Typical price£450,000 Gigabit, every home792 of 1,034 At flood risk292 of 1,077
- SL4 postcode district: WindsorWindsor and Maidenhead, Bracknell Forest, Buckinghamshire, Runnymede, Slough 1,376 postcodes Typical price£500,000 Gigabit, every home853 of 1,284 At flood risk571 of 1,376
- SL5 postcode district: Ascot and SunningdaleWindsor and Maidenhead, Bracknell Forest, Runnymede, Surrey Heath 888 postcodes Typical price£600,000 Gigabit, every home676 of 846 At flood risk59 of 888
- SL6 postcode district: MaidenheadWindsor and Maidenhead, Buckinghamshire, Slough 2,316 postcodes Typical price£508,750 Gigabit, every home1,562 of 2,246 At flood risk560 of 2,316
- SL7 postcode district: MarlowBuckinghamshire, Windsor and Maidenhead 695 postcodes Typical price£675,000 Gigabit, every home461 of 676 At flood risk174 of 695
- SL8 postcode district: Bourne EndBuckinghamshire, Windsor and Maidenhead 264 postcodes Typical price£581,250 Gigabit, every home169 of 256 At flood risk80 of 264
- SL9 postcode district: Chalfont St PeterBuckinghamshire, Three Rivers 872 postcodes Typical price£834,650 Gigabit, every home688 of 843 At flood risk28 of 872
- SL60 postcode district: MaidenheadWindsor and Maidenhead 30 postcodes Typical priceToo few sales At flood riskNone listed
- SL95 postcode district: SloughSlough 23 postcodes Typical priceToo few sales At flood riskNone listed
Prices: HM Land Registry, files dated 28 September 2026; the bar is set against the dearest district. Gigabit: Ofcom, Connected Nations, Spring 2026, counting postcodes. Flood: Environment Agency, published 6 July 2026, postcodes in England with a home or business in an area at risk from rivers or the sea. How we use them
One row for every district in the area. "No place listed" means no town or village is large enough to list for it.
Places in the SL area
Towns and villages with postcodes in the SL area, each with the typical price of a home there where at least 5 sold.
Councils in the SL area
How many of the area's postcodes fall under each council.
- Windsor and Maidenhead4,313 postcodes
- Buckinghamshire3,157 postcodes
- Slough2,883 postcodes
- Bracknell Forest301 postcodes
- Runnymede10 postcodes
- Surrey Heath5 postcodes
- Three Rivers3 postcodes
Near the SL area
The postcode areas whose centre points are nearest to this one's, nearest first.
Check a postcode
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