SG3 6QA

Knebworth · North Hertfordshire · England

Updated September 2026

Compare this postcode

Location overview

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

Nearby postcodes

Nearby postcode distances
Postcode Distance
SG3 6SL 77 m
SG3 6FS 138 m
SG3 6QB 143 m
SG3 6QD 178 m
SG3 6QN 193 m
Complete postcode fields and official codes
Postcode
SG3 6QA
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SG
Postcode district
SG3
Postcode sector
SG3 6
Latitude
51.868891
Longitude
-0.213053
British National Grid easting
523,127
British National Grid northing
220,432

Statistical and administrative geographies

Country
England · E92000001
Region
East of England · E12000006
Local authority district
North Hertfordshire · E07000099
Electoral ward
Knebworth · E05015768
Parish or community
E04004783
Westminster constituency
Stevenage · E14001516
Output area
E00120007
Lower layer super output area
North Hertfordshire 015D · E01023627
Middle layer super output area
North Hertfordshire 015 · E02004923

Postcode source versions

Explore SG3

2 recorded sales at this postcode
Address Date Price
Green Cottages, 2, Park Lane, Old Knebworth, Knebworth, SG3 6QA 6 August 2012 £525,000
Green Cottages, 2, Park Lane, Old Knebworth, Knebworth, SG3 6QA 31 January 1997 £110,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
33
Primary
22
Secondary
2
  1. Knebworth Primary and Nursery School

    Community school

    2.2 km
  2. St Margaret Clitherow Roman Catholic Primary School

    Voluntary aided school

    2.2 km
  3. Roebuck Academy

    Academy converter

    2.7 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
55
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 24
  • Anti social behaviour 8
  • Burglary 6
  • Vehicle crime 4
  • Other theft 3

Census 2021

Population and age profile

Postcode residents
7

3 female, 4 male

Postcode households
6
Residents per household
1.2
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 0.1% 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+
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

8

within 5 km

  • KNEBWORTH & MARYMEAD PRACTICE

    7 ST MARTINS ROAD, KNEBWORTH, SG3 6ER

    ODS code E82035

    2.3 km

  • SHEPHALL HEALTH CENTRE

    RIDLINS END, STEVENAGE, SG2 9QZ

    ODS code E82056

    4.0 km

  • KING GEORGE & MANOR HOUSE SURGERIES

    KING GEORGE SURGERY(MAIN), 135 HIGH STREET, STEVENAGE, SG1 3HT

    ODS code E82086

    4.3 km

  • BRIDGE COTTAGE SURGERY

    41 HIGH STREET, WELWYN, AL6 9EF

    ODS code E82019

    4.3 km

  • BEDWELL MEDICAL CENTRE

    SINFIELD CL, BEDWELL CRES, STEVENAGE, SG1 1LQ

    ODS code E82093

    4.4 km

  • WHITWELL SURGERY

    60 HIGH STREET, WHITWELL, HITCHIN, SG4 8AG

    ODS code E82626

    4.6 km

  • THE SYMONDS GREEN HEALTH CENTRE

    FILEY CLOSE, STEVENAGE, SG1 2JW

    ODS code E82111

    5.0 km

  • STANMORE MEDICAL GROUP

    5 STANMORE ROAD, STEVENAGE, SG1 3QA

    ODS code E82005

    5.0 km

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Manor Farm

    BCT · Old Knebworth

    0.0 miles
  • Manor Farm

    BCT · Old Knebworth

    0.0 miles
  • Lytton Arms PH

    BCT · Old Knebworth

    0.2 miles
  • Lytton Arms PH

    BCT · Old Knebworth

    0.2 miles
  • Playing Field

    BCT · Old Knebworth

    0.2 miles

Relative deprivation

English Indices of Deprivation 2025 for North Hertfordshire 015D, 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

9 of 10

Overall England rank

28,342 of 33,755

Income
10 of 10
Employment
9 of 10
Education and skills
9 of 10
Health and disability
10 of 10
Crime
8 of 10
Housing and services
4 of 10
Living environment
3 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

Schools

33 open schools are in scope, including 22 primary and 2 secondary schools. Knebworth Primary and Nursery School is the nearest published school at 1.3 miles.

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

Recorded crime

55 published events cover 12 months, averaging 4.583 events per published month. The largest recorded category is Violence and sexual offences with 24 events.

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