AL6 9TY

Knebworth · North Hertfordshire · England

Updated September 2026

Compare this postcode

Location overview

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Post town
Welwyn
Local authority
North Hertfordshire
Constituency
Stevenage
Postcode district
AL6
Postcode sector
AL6 9

Nearby postcodes

Nearby postcode distances
Postcode Distance
AL6 9GP 239 m
AL6 9UH 286 m
SG4 8FN 376 m
AL6 9UJ 407 m
SG4 8DE 426 m
Complete postcode fields and official codes
Postcode
AL6 9TY
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
AL
Postcode district
AL6
Postcode sector
AL6 9
Latitude
51.843174
Longitude
-0.227297
British National Grid easting
522,216
British National Grid northing
217,548

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
E04004773
Westminster constituency
Stevenage · E14001516
Output area
E00119991
Lower layer super output area
North Hertfordshire 015D · E01023627
Middle layer super output area
North Hertfordshire 015 · E02004923

Postcode source versions

Explore AL6

21 recorded sales at this postcode
Address Date Price
99, Codicote Road, Welwyn, AL6 9TY 24 November 2023 £900,000
Oakleigh Riding Stables, Codicote Road, Welwyn, AL6 9TY 2 October 2023 £3,960,000
89, Codicote Road, Welwyn, AL6 9TY 26 July 2021 £870,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
18
Primary
13
Secondary
1
  1. Codicote Church of England Primary School

    Voluntary controlled school

    944 m
  2. Welwyn St Mary's Church of England Voluntary Aided Primary School

    Voluntary aided school

    2.0 km
  3. Tenterfield Nursery School

    Local authority nursery school

    2.1 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
214
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 89
  • Anti social behaviour 43
  • Criminal damage and arson 26
  • Burglary 14
  • Other theft 10

Census 2021

Population and age profile

Postcode residents
57

29 female, 28 male

Postcode households
22
Residents per household
2.6
AL6 9 residents
5,734

Age bands in AL6 9

Wider postcode sector
Age 0 to 14
16.7%

953 residents

Age 15 to 24
8%

459 residents

Age 25 to 44
23.1%

1,315 residents

Age 45 to 64
27.5%

1,568 residents

Age 65 and over
24.7%

1,409 residents

This postcode contained 1% of the sector's usual residents on Census Day. The age profile describes the wider AL6 9 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+
95.5%
Ultrafast, 100 Mbit/s+
77.3%
Ultrafast, 300 Mbit/s+
72.7%
Gigabit-capable
77.3%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
95.5%
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

2

within 5 km

  • BRIDGE COTTAGE SURGERY

    41 HIGH STREET, WELWYN, AL6 9EF

    ODS code E82019

    1.7 km

  • KNEBWORTH & MARYMEAD PRACTICE

    7 ST MARTINS ROAD, KNEBWORTH, SG3 6ER

    ODS code E82035

    4.1 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

  • Hollards Farm

    BCT · Codicote

    0.0 miles
  • Hollards Farm

    BCT · Codicote

    0.0 miles
  • Rollswood Road

    BCT · Danesbury

    0.2 miles
  • Rollswood Road

    BCT · Danesbury

    0.2 miles
  • New Town

    BCT · Codicote

    0.3 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
2
Medium risk addresses
1
Low risk addresses
23
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 £2,430,000 from 2 recorded sales in AL6 9TY. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for North Hertfordshire is £422,616 in June 2026, up 7.8% year on year.

Schools

18 open schools are in scope, including 13 primary and 1 secondary schools. Codicote Church of England Primary School is the nearest published school at 944 m.

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

Recorded crime

214 published events cover 12 months, averaging 17.833 events per published month. The largest recorded category is Violence and sexual offences with 89 events.

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