SO21 1DF

Alresford and Itchen Valley · Winchester · England

Updated September 2026

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Location overview

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Post town
Winchester
Local authority
Winchester
Constituency
Winchester
Postcode district
SO21
Postcode sector
SO21 1

Nearby postcodes

Nearby postcode distances
Postcode Distance
SO21 1ED 149 m
SO21 1EB 505 m
SO21 1EE 689 m
SO21 1DZ 747 m
SO21 1EY 833 m
Complete postcode fields and official codes
Postcode
SO21 1DF
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SO
Postcode district
SO21
Postcode sector
SO21 1
Latitude
51.086764
Longitude
-1.255036
British National Grid easting
452,273
British National Grid northing
132,203

Statistical and administrative geographies

Country
England · E92000001
Region
South East · E12000008
Local authority district
Winchester · E07000094
Parish or community
E04004671
Westminster constituency
Winchester · E14001587
Output area
E00118064
Lower layer super output area
Winchester 002A · E01023236
Middle layer super output area
Winchester 002 · E02004830

Postcode source versions

Explore SO21

1 recorded sale at this postcode
Address Date Price
Avington Park, Easton Lodge, Avington, Winchester, SO21 1DF 16 September 2019 £965,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
11
Primary
6
Secondary
0
  1. Itchen Abbas Primary School

    Community school

    1.6 km
  2. Prince's Mead School

    Other independent school

    2.2 km
  3. Kings Worthy Primary School

    Community school

    3.1 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
45
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 17
  • Burglary 6
  • Vehicle crime 6
  • Criminal damage and arson 6
  • Other theft 3

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
SO21 1 residents
8,143

Age bands in SO21 1

Wider postcode sector
Age 0 to 14
19.2%

1,521 residents

Age 15 to 24
8.5%

673 residents

Age 25 to 44
20.7%

1,644 residents

Age 45 to 64
28.6%

2,270 residents

Age 65 and over
23%

1,820 residents

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+
0%
Ultrafast, 100 Mbit/s+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
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

1

within 5 km

  • ST CLEMENTS PARTNERSHIP

    28 UPPER BROOK STREET, WINCHESTER, SO23 8DG

    ODS code J82035

    4.7 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 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Chilland Lane

    BCT · Couch Green

    0.4 miles
  • Chilland Lane

    BCT · Couch Green

    0.5 miles
  • Couch Green

    BCT · Couch Green

    0.5 miles
  • Couch Green

    BCT · Couch Green

    0.5 miles
  • War Memorial

    BCT · Martyr Worthy

    0.6 miles

Relative deprivation

English Indices of Deprivation 2025 for Winchester 002A, 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

7 of 10

Overall England rank

23,333 of 33,755

Income
10 of 10
Employment
10 of 10
Education and skills
10 of 10
Health and disability
10 of 10
Crime
6 of 10
Housing and services
1 of 10
Living environment
2 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

11 open schools are in scope, including 6 primary and 0 secondary schools. Itchen Abbas Primary School is the nearest published school at 1.0 miles.

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

Recorded crime

45 published events cover 12 months, averaging 3.75 events per published month. The largest recorded category is Violence and sexual offences with 17 events.

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