SG3 6SU

Aston, Datchworth & Walkern · East Hertfordshire · England

Updated September 2026

Compare this postcode

Location overview

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Post town
Knebworth
Local authority
East Hertfordshire
Constituency
Stevenage
Postcode district
SG3
Postcode sector
SG3 6

Nearby postcodes

Nearby postcode distances
Postcode Distance
SG3 6TG 162 m
SG3 6TQ 166 m
SG3 6SX 200 m
SG3 6UH 214 m
SG3 6TE 237 m
Complete postcode fields and official codes
Postcode
SG3 6SU
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SG
Postcode district
SG3
Postcode sector
SG3 6
Latitude
51.852923
Longitude
-0.158943
British National Grid easting
526,897
British National Grid northing
218,749

Statistical and administrative geographies

Country
England · E92000001
Region
East of England · E12000006
Local authority district
East Hertfordshire · E07000242
Parish or community
E04004728
Westminster constituency
Stevenage · E14001516
Output area
E00119196
Lower layer super output area
East Hertfordshire 019E · E01023467
Middle layer super output area
East Hertfordshire 019 · E02007093

Postcode source versions

Explore SG3

18 recorded sales at this postcode
Address Date Price
7, Brookbridge Lane, Datchworth, Knebworth, SG3 6SU 29 January 2026 £800,000
23, Brookbridge Lane, Datchworth, Knebworth, SG3 6SU 29 June 2021 £1,106,000
7, Brookbridge Lane, Datchworth, Knebworth, SG3 6SU 13 November 2020 £732,500

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
27
Primary
19
Secondary
1
  1. All Saints Church of England Voluntary Aided Primary School, Datchworth

    Voluntary aided school

    620 m
  2. St Michael's Woolmer Green CofE VA Primary School

    Voluntary aided school

    1.6 km
  3. Knebworth Primary and Nursery School

    Community school

    2.1 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
76
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 28
  • Anti social behaviour 22
  • Criminal damage and arson 7
  • Public order 6
  • Other theft 4

Census 2021

Population and age profile

Postcode residents
57

32 female, 25 male

Postcode households
23
Residents per household
2.5
SG3 6 residents
7,208

Age bands in SG3 6

Wider postcode sector
Age 0 to 14
16.3%

1,165 residents

Age 15 to 24
9.2%

655 residents

Age 25 to 44
23.4%

1,665 residents

Age 45 to 64
29%

2,066 residents

Age 65 and over
22.1%

1,576 residents

This postcode contained 0.8% of the sector's usual residents on Census Day. The age profile describes the wider SG3 6 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+
32%
Ultrafast, 300 Mbit/s+
32%
Gigabit-capable
32%
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

4

within 5 km straight-line

  • KNEBWORTH & MARYMEAD PRACTICE

    7 ST MARTINS ROAD, KNEBWORTH, SG3 6ER

    ODS code E82035

    2.1 km

  • WATTON PLACE CLINIC

    HIGH STREET, WATTON AT STONE, HERTFORD, SG14 3SY

    ODS code E82121

    3.1 km

  • SHEPHALL HEALTH CENTRE

    RIDLINS END, STEVENAGE, SG2 9QZ

    ODS code E82056

    4.3 km

  • BRIDGE COTTAGE SURGERY

    41 HIGH STREET, WELWYN, AL6 9EF

    ODS code E82019

    4.7 km

Nearby transport

  • Bury Lane

    BCT · Datchworth

    0.1 miles
  • Nutcroft

    BCT · Datchworth

    0.1 miles
  • Hawkins Grange Farm

    BCT · Datchworth

    0.1 miles
  • Great Lawne

    BCT · Datchworth

    0.2 miles
  • Hawkins Hall Lane

    BCT · Datchworth

    0.2 miles

Relative deprivation

English Indices of Deprivation 2025 for East Hertfordshire 019E, 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

8 of 10

Overall England rank

25,862 of 33,755

Income
8 of 10
Employment
9 of 10
Education and skills
9 of 10
Health and disability
9 of 10
Crime
9 of 10
Housing and services
2 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
0
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

Property market

The five-year median is £800,000 from 1 recorded sale in SG3 6SU. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for East Hertfordshire is £460,778 in June 2026, up 4.0% year on year.

Schools

27 open schools are in scope, including 19 primary and 1 secondary schools. All Saints Church of England Voluntary Aided Primary School, Datchworth is the nearest published school at 620 m.

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

Recorded crime

76 published events cover 12 months, averaging 6.333 events per published month. The largest recorded category is Violence and sexual offences with 28 events.

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