SL3
Postcode districtPostcode district covering Slough, Langley and Datchet, in Slough, Windsor and Maidenhead and Buckinghamshire.
Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SL3 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 4% of people in SL3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How SL3 compares
Each dot is a postcode district. The black line marks the middle one.
Is SL3 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SL3 at a rate of 84.7 per 1,000 people.
That compares with 77.9 per 1,000 people across the SL postcode area.
In August 2026 alone, 410 cases of crime and anti-social behaviour were recorded in SL3.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,591), other crime (886) and anti-social behaviour (540).
A year earlier, the recorded crime rate in SL3 was 82.3 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Deprivation in SL3, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SL3 has no single figure. Of its 28 neighbourhoods with a rank:
- Decile 2: 1 neighbourhood
- Decile 3: 1 neighbourhood
- Decile 4: 3 neighbourhoods
- Decile 5: 6 neighbourhoods
- Decile 6: 8 neighbourhoods
- Decile 7: 3 neighbourhoods
- Decile 8: 2 neighbourhoods
- Decile 9: 4 neighbourhoods
English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.
Neighbourhoods in SL3
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Buckinghamshire 064D | 1,658 | 110.2 per 1,000 | 7 | 71.8% |
| Buckinghamshire 064E | 1,657 | 78.3 per 1,000 | 5 | 46.4% |
| Slough 010A | 1,864 | 59.5 per 1,000 | 6 | 99.6% |
| Slough 010B | 1,905 | 65.0 per 1,000 | 6 | 95.6% |
| Slough 010C | 2,245 | 56.0 per 1,000 | 8 | 95.0% |
| Slough 010D | 1,660 | 71.4 per 1,000 | 6 | 99.3% |
| Slough 010E | 2,138 | 61.5 per 1,000 | 9 | 99.4% |
| Slough 011E | 2,097 | 52.5 per 1,000 | 9 | 99.8% |
| Slough 011H | 1,325 | 94.3 per 1,000 | 9 | 99.8% |
| Slough 011I | 1,849 | 56.6 per 1,000 | 8 | 94.5% |
| Slough 012A | 1,949 | 78.8 per 1,000 | 7 | 99.2% |
| Slough 012B | 1,794 | 79.8 per 1,000 | 4 | 99.1% |
| Slough 012C | 1,594 | 65.6 per 1,000 | 6 | 99.8% |
| Slough 012D | 1,667 | 36.2 per 1,000 | 5 | 99.7% |
| Slough 012E | 1,499 | 100.6 per 1,000 | 6 | 98.2% |
| Slough 012F | 1,818 | 104.1 per 1,000 | 5 | 99.9% |
| Slough 013B | 2,047 | 106.8 per 1,000 | 3 | 95.5% |
| Slough 013C | 1,820 | 97.2 per 1,000 | 7 | 89.0% |
| Slough 013D | 1,804 | 95.3 per 1,000 | 6 | 98.9% |
| Slough 013E | 1,542 | 90.4 per 1,000 | 5 | 91.8% |
| Slough 013F | 1,772 | 126.1 per 1,000 | 4 | 97.4% |
| Slough 014A | 1,690 | 64.5 per 1,000 | 5 | 98.3% |
| Slough 014B | 1,478 | 151.6 per 1,000 | 2 | 79.5% |
| Slough 014C | 1,514 | 113.7 per 1,000 | 4 | 74.0% |
| Slough 014D | 1,737 | 109.2 per 1,000 | 6 | 73.0% |
| Windsor and Maidenhead 011A | 1,765 | 77.7 per 1,000 | 6 | 95.9% |
| Windsor and Maidenhead 011B | 1,677 | 70.1 per 1,000 | 9 | 89.6% |
| Windsor and Maidenhead 011C | 1,699 | 103.4 per 1,000 | 5 | 95.9% |
MPs for SL3
- Jack RankinConservativeMP for Windsor57% of SL3’s postcodes
- Mr Tanmanjeet Singh DhesiLabourMP for Slough32% of SL3’s postcodes
- Joy MorrisseyConservativeMP for Beaconsfield12% of SL3’s postcodes
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in SL35
Postcode sectors in SL36
Councils SL3 covers3
Towns in SL31
Postcode districts next to SL310
Nearest rail stations4
More in the SL postcode area2
SL3 in brief
SL3 is a postcode district covering Slough, Langley and Datchet, in Slough, Windsor and Maidenhead and Buckinghamshire.
About 52,363 people lived in SL3 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £453,000 in 2025 across 405 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 84.7 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SL3 was £453,000 in 2025.
SL3 had 50,366 usual residents at the census.
About 4% of people in SL3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SL3, 91.9% of homes and businesses could get gigabit-capable broadband in January 2026.