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SO21

Postcode district

Postcode district covering Colden Common, in Winchester.

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SO21 postcode. How census figures are added up

Open in map

Gigabit coverage by postcode district

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In SO21, 42.0% of homes and businesses could get gigabit-capable broadband in January 2026.

Median sale price
£576,500
168th most expensive of 2,235
Worked out by Open Index
Population
20,980
1,356th least populated of 2,756
ONS Census 2021 · 2021
Gigabit broadband coverage
42.0%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
1.5%
UK 3.9%
ONS via Nomis · Aug 2026

How SO21 compares

Each dot is a postcode district. The black line marks the middle one.

SO21Middle
Median sale price23 postcode districts, SO · 2025
Median sale price: every postcode district in SO23 areas from £213,750 to £822,500. The middle area is £385,000. SO21 is £576,500.
£576,5003rd most expensive
Population24 postcode districts, SO · 2021
Population: every postcode district in SO24 areas from 428 to 69,888. The middle area is 31,425. SO21 is 20,980.
20,9808th least populated
Gigabit broadband coverage24 postcode districts, SO · Jan 2026
Gigabit broadband coverage: every postcode district in SO24 areas from 42.0% to 98.8%. The middle area is 84.7%. SO21 is 42.0%.
42.0%lowest
Claimant rate23 postcode districts, SO · Aug 2026
Claimant rate: every postcode district in SO23 areas from 1.2% to 5.3%. The middle area is 2.2%. SO21 is 1.5%.
1.5%3rd lowest

Is SO21 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SO21 at a rate of 44.1 per 1,000 people.

That compares with 86.0 per 1,000 people across SO.

In August 2026 alone, 131 cases of crime and anti-social behaviour were recorded in SO21.

In the 12 months to August 2026, the most common types were other crime (301), violence and sexual offences (289) and criminal damage and arson (85).

A year earlier, the recorded crime rate in SO21 was 45.5 per 1,000 people.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

Deprivation in SO21, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so SO21 has no single figure. Of its 11 neighbourhoods with a rank:
  • Decile 4: 1 neighbourhood
  • Decile 6: 1 neighbourhood
  • Decile 7: 2 neighbourhoods
  • Decile 8: 2 neighbourhoods
  • Decile 9: 2 neighbourhoods
  • Decile 10 (England’s least deprived 10%): 3 neighbourhoods

English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

Neighbourhoods in SO21

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Winchester 001A1,51369.1 per 1,00060.1%
Winchester 001B2,96221.1 per 1,0001013.5%
Winchester 001C1,44366.3 per 1,00047.2%
Winchester 002A2,01998.9 per 1,000729.2%
Winchester 003E2,66564.3 per 1,000852.4%
Winchester 009A2,09143.3 per 1,000960.2%
Winchester 010A1,69134.9 per 1,0001054.1%
Winchester 010B2,02250.9 per 1,000872.9%
Winchester 010C2,27931.5 per 1,000970.4%
Winchester 010D2,12931.3 per 1,0001067.2%
Winchester 010E1,62844.2 per 1,000766.3%

MPs for SO21

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Middle areas in SO212

Postcode sectors in SO213

Council1

Postcode districts next to SO2111

Nearest rail stations1

More in the SO postcode area2

SO21 in brief

SO21 is a postcode district covering Colden Common, in Winchester.

About 21,926 people lived in SO21 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £576,500 in 2025 across 216 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 44.1 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in SO21 was £576,500 in 2025.

SO21 had 20,980 usual residents at the census.

In SO21, 42.0% of homes and businesses could get gigabit-capable broadband in January 2026.

In SO21, 1.5% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.