Least deprived 20–30%
IMD England
Low · 3.7 per 1k
Crime · Aug '26
South East
Region
Deprivation Index (IMD)
IMD England — Index of Multiple Deprivation
Measures deprivation across income, employment, health, education, crime, housing, barriers to housing and services, and living environment.
25482
Rank out of 33,755 LSOAs in England
1 - Most deprived10 - Least deprived
Rank 25482 out of 33,755 lower layer super output areas in England. N/A for Wales, Scotland and Northern Ireland as this postcode is in England.
Property sales (Land Registry)
England & WalesPolice Recorded Crime near SO21 1SL
England & WalesCrime trends · near SO21 1SL
Counts are for Colden Common and Twyford electoral ward, not a 1-mile police.uk street search around this postcode.
data.police.uk · YoY vs same month last year · per 1,000 residents (Census 2021)Sep '24 – Aug '26
Key categories · YoY
Violent Crime
5
YoY -58%
1272
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
3
YoY —
530
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
1
YoY —
320
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
0
YoY —
530
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
1
YoY —
630
Sep '24Mar '25Sep '25Mar '26Aug '26
Demographics (LSOA 2021 context)
Ethnicity
White Brit.91.7%
Other White4.2%
Indian1.1%
+ other · 3.0%
Religion
Christian48.0%
No religion46.1%
Not answered3.6%
+ other · 2.3%
Age groups
50–6421.1%
35–4920.5%
65–7410.7%
25–3410.0%
10–158.1%
+ 6 other age groups · 29.7%
Households
Married or civil partnership couple: Dependent children17.6%
One person: aged 66+16.6%
One person: other13.9%
Married or civil partnership couple: No children11.8%
Single family household, all members 66+10.3%
+ 9 other households · 29.8%
Coordinates & Location for SO21 1SL
Southampton
Travel to Work
TTWA
Postcode
SO21 1SL
Coordinates
50.9999, -1.3223
Grid reference
SU476225
Easting
447,653
Northing
122,502
Region
South East
Plus Code
9C2WXMXH+X3
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Colden Common
Travel to Work
Southampton
ITL Region
Winchester
National Park
Non-National Park
Administrative Information
Winchester
Local Authority
Council AreaWinchester E14001587
Constituency
E14001587Hampshire
Police Force
England
Ward
Colden Common and Twyford
Constituency code
E14001587
EU Electoral Region
South East
Parish
Colden Common
International Territorial Level
Winchester
Health & NHS
South Central
Health Authority
Serving Hampshire
NHS EnglandWessex
Cancer Alliance
National
Health Authority
South Central
NHS Region
South East
Integrated Care Board
NHS Hampshire and Isle of Wight Integrated Care Board
Primary Care Org
Hampshire
Sub ICB Location
NHS Hampshire and Isle of Wight ICB - D9Y0V
Cancer Alliance
Wessex
Statistical Areas
LSOA 2021
Super Output Area
Winchester 010B E01023227
E01023227MSOA 2021
Mid Super Output
Winchester 010 E02004838
E02004838LSOA 2011
Super Output Area
Winchester 010B E01023227
E01023227MSOA 2011
Mid Super Output
Winchester 010 E02004838
E02004838Larger rural: Nearer to a major town or city
Rural/Urban Classification 2021
2001 Classification
(England/Wales) Town and Fringe – less sparse: OA falls within the Town and Fringe category and the wider surrounding area is less sparsely populated 6
2011 Classification
(England/Wales) Rural town and fringe D1
2021 Classification
Larger rural: Nearer to a major town or city RLN1
Sun & Time Information
7:23 AM
Sunrise
6:20 PM
Sunset
10 hours 57 minutes of daylight today
Sunrise (today)
7:23 AM
Sunset (today)
6:20 PM
Daylight duration
10 hours 57 minutes
Time zone
GMT / BST (UTC +0 / +1)
Postcode History
January 1980
First Introduced
Active fromNot terminated
Usage Ended
Terminated~46 years
Active Duration
1980 -> PresentJanuary 1980 — Introduced
Postcode SO21 1SL introduced by Royal Mail.
2001 — Census Classification
2001 Rural/Urban Classification: (England/Wales) Town and Fringe – less sparse: OA falls within the Town and Fringe category and the wider surrounding area is less sparsely populated 6
2011 — Reclassified
2011 Rural/Urban Classification: (England/Wales) Rural town and fringe D1.
2021 — Census Update
2021 Census classification: Larger rural: Nearer to a major town or city RLN1. LSOA E01023227 and MSOA E02004838 assigned.
2025 — Indices of Deprivation
IMD England rank: 25482
Present — Active
Postcode SO21 1SL is currently active and in use.
First introduced
January 1980
Usage ended
Not terminated
Active duration
~46 years
Last updated
2026-08-01
Current status
Live
School applications
We've matched the postcode to Hampshire.
You apply through this education local authority even if the school is in another council area.
Winchester is the district council. School applications go through Hampshire.
Last published allocation
None of the schools listed here has a published last-distance figure, so we cannot compare a postcode with last year's allocation. We do not draw catchment maps in this list; where we hold a council's map, it is on the school's page.
Apply for a secondary placeAdmissions and composite prospectus guidanceApplication deadlines and offer daysHome education — find your councilHome education guidance
GOV.UK is the official apply and admissions handoff. We do not link a generic council homepage. Per-LA composite prospectus URLs are not in the API yet.
Schools near SO21 1SL
Open state schools within 1.2 miles of this postcode, ranked by distance.
PrimaryStateMixed · Ages 4–11FSM 11%
RWM expected
73%
PrimaryStateMixed · Ages 4–11FSM 3%
RWM expected
71%
School performance data © Crown copyright. Source: Department for Education.
Spot a mistake on this page? Email [email protected] and we'll check it against the source.
Explore the full Winchester
See local data, transport links, deprivation trends and more for the broader area — all in one place.