CheckNear.me

SL4

UK postcode district

Updated September 2026

District overview

Postcode units
2,142
Current units
1,376
Coordinate coverage
99%
Electoral wards
13

Coverage context

Countries represented
England
English regions represented
South East
Local authority codes
5
Terminated postcode units
766

Postcode sectors in SL4

Choose a sector to browse its complete postcode-unit directory.

7 sectors

Property

Across this district

View property report
24,530 recorded sales at this postcode
Address Date Price
Grove House, 150, Flat 1, Straight Road, Old Windsor, Windsor, SL4 2SG 23 July 2026 £250,000
23, King Stable Street, Eton, Windsor, SL4 6AB 22 July 2026 £560,000
6, Flat 2, Claremont Road, Windsor, SL4 3AX 17 July 2026 £328,000

Schools

Across this district

View schools report
Open schools
30
Primary
15
Secondary
6

Recorded crime

Across this district

View crime report
Published events
3,789
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 1,267
  • Anti social behaviour 352
  • Shoplifting 338
  • Other theft 313
  • Vehicle crime 312

Census 2021

Population and age profile

SL4 usual residents
45,354
Age-profile population
46,036

Age bands in SL4

Postcode district
Age 0 to 14
17.6%

8,081 residents

Age 15 to 24
11.1%

5,109 residents

Age 25 to 44
25.4%

11,713 residents

Age 45 to 64
27.8%

12,804 residents

Age 65 and over
18.1%

8,329 residents

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

The median Ofcom availability percentage across 1,284 current postcode units in this district. Each postcode is weighted equally, not by premises.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

1,135 postcode units had 100% superfast coverage, 853 had 100% gigabit-capable coverage, and 4 had at least some premises without decent fixed or fixed-wireless access.

Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

NHS ODS

GP practices

4

in this district

  • CLARENCE MEDICAL CENTRE

    VANSITTART ROAD, WINDSOR, SL4 5AS

    ODS code K81074

  • LEE HOUSE SURGERY

    84 OSBORNE ROAD, WINDSOR, SL4 3EW

    ODS code K81046

  • SHEET STREET SURGERY

    21 SHEET STREET, WINDSOR, SL4 1BZ

    ODS code K81068

  • SOUTH MEADOW SURGERY

    3 CHURCH CLOSE, ETON, WINDSOR, SL4 6AP

    ODS code K81630

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £499,972 from 3,302 recorded sales in SL4. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Windsor and Maidenhead is £576,992 in June 2026, down 2.2% year on year.

Schools

Published establishments

30 open schools are in scope, including 15 primary and 6 secondary schools.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

3,789 published events cover 12 months, averaging 315.75 events per published month. The largest recorded category is Violence and sexual offences with 1,267 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.