SL4 3JG

Old Windsor · Windsor and Maidenhead · England

Updated September 2026

Compare this postcode

Location overview

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Post town
Windsor
Local authority
Windsor and Maidenhead
Constituency
Windsor
Postcode district
SL4
Postcode sector
SL4 3

Nearby postcodes

Nearby postcode distances
Postcode Distance
SL4 3LD 51 m
SL4 2BE 117 m
SL4 3JJ 117 m
SL4 3JF 128 m
SL4 3JY 132 m
Complete postcode fields and official codes
Postcode
SL4 3JG
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SL
Postcode district
SL4
Postcode sector
SL4 3
Latitude
51.470716
Longitude
-0.610486
British National Grid easting
496,608
British National Grid northing
175,554

Statistical and administrative geographies

Country
England · E92000001
Region
South East · E12000008
Local authority district
Windsor and Maidenhead · E06000040
Parish or community
E43000259
Westminster constituency
Windsor · E14001588
Output area
E00083787
Lower layer super output area
Windsor and Maidenhead 015C · E01016596
Middle layer super output area
Windsor and Maidenhead 015 · E02003435

Postcode source versions

Explore SL4

2 recorded sales at this postcode
Address Date Price
88, Bolton Road, Windsor, SL4 3JG 25 September 2009 £500,000
Grooms Cottage, Bolton Road, Windsor, SL4 3JG 25 February 1998 £350,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
48
Primary
19
Secondary
12
  1. Queensmead House School

    Other independent special school

    198 m
  2. Trevelyan Middle School

    Academy converter

    362 m
  3. The Queen Anne Royal Free CofE Controlled First School

    Voluntary controlled school

    406 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
1,774
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 540
  • Shoplifting 262
  • Anti social behaviour 169
  • Public order 159
  • Other theft 147

Census 2021

Population and age profile

Postcode residents
16

6 female, 10 male

Postcode households
6
Residents per household
2.7
SL4 3 residents
9,075

Age bands in SL4 3

Wider postcode sector
Age 0 to 14
17.2%

1,550 residents

Age 15 to 24
9.9%

891 residents

Age 25 to 44
27.9%

2,520 residents

Age 45 to 64
29.1%

2,627 residents

Age 65 and over
16%

1,449 residents

This postcode contained 0.2% of the sector's usual residents on Census Day. The age profile describes the wider SL4 3 sector, not people in this individual postcode.

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

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

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

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%

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

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

GP practices

7

within 5 km straight-line

  • LEE HOUSE SURGERY

    84 OSBORNE ROAD, WINDSOR, SL4 3EW

    ODS code K81046

    643 m

  • SHEET STREET SURGERY

    21 SHEET STREET, WINDSOR, SL4 1BZ

    ODS code K81068

    1.1 km

  • CLARENCE MEDICAL CENTRE

    VANSITTART ROAD, WINDSOR, SL4 5AS

    ODS code K81074

    1.1 km

  • SOUTH MEADOW SURGERY

    3 CHURCH CLOSE, ETON, WINDSOR, SL4 6AP

    ODS code K81630

    2.0 km

  • DATCHET HEALTH CENTRE

    GREEN LANE, DATCHET, SLOUGH, SL3 9EX

    ODS code K81021

    2.7 km

  • CHAPEL MEDICAL CENTRE

    SLOUGH WALK IN CENTRE, UPTON HOSPITAL, ALBERT STREET, SLOUGH, SL1 2BJ

    ODS code Y00265

    4.0 km

  • HERSCHEL MEDICAL CENTRE

    45 OSBORNE STREET, SLOUGH, SL1 1TT

    ODS code K81043

    4.2 km

Nearby transport

  • Bolton Road

    BCT · Windsor

    0.0 miles
  • Bolton Road

    BCT · Windsor

    0.1 miles
  • Queensmead

    BCT · Windsor

    0.1 miles
  • Queensmead

    BCT · Windsor

    0.1 miles
  • Queensmead

    BCT · Windsor

    0.1 miles

Relative deprivation

English Indices of Deprivation 2025 for Windsor and Maidenhead 015C, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.

Overall IMD decile

10 of 10

Overall England rank

32,853 of 33,755

Income
10 of 10
Employment
10 of 10
Education and skills
10 of 10
Health and disability
10 of 10
Crime
10 of 10
Housing and services
9 of 10
Living environment
6 of 10

These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.

Flood risk

Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.

High risk addresses
0
Medium risk addresses
0
Low risk addresses
1
Groundwater flood alert area
Unlikely

Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.

Evidence in context

Schools

48 open schools are in scope, including 19 primary and 12 secondary schools. Queensmead House School is the nearest published school at 198 m.

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

Recorded crime

1,774 published events cover 12 months, averaging 147.833 events per published month. The largest recorded category is Violence and sexual offences with 540 events.

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