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SO23

Postcode district

Postcode district covering Winchester, Winnall and The Close, 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 SO23 postcode. How census figures are added up

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 3% of people in SO23 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£515,000
Joint 252nd most expensive of 2,235
Worked out by Open Index
Population
23,001
1,279th most populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
3%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
70.7%
UK 87.8%
Ofcom · Jan 2026

How SO23 compares

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

SO23Middle
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. SO23 is £515,000.
£515,0006th 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. SO23 is 23,001.
23,0019th least populated
People in radon Affected Area squares24 postcode districts, SO · 2022
People in radon Affected Area squares: every postcode district in SO24 areas from 0.0% to 100.0%. The middle area is 33.5%. SO23 is 3.0%.
3%8th fewest people in radon Affected Areas
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%. SO23 is 70.7%.
70.7%7th lowest

Is SO23 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SO23 at a rate of 106.6 per 1,000 people.

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

In August 2026 alone, 230 cases of crime and anti-social behaviour were recorded in SO23.

In the 12 months to August 2026, the most common types were violence and sexual offences (842), other crime (487) and shoplifting (448).

A year earlier, the recorded crime rate in SO23 was 106.9 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 SO23, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so SO23 has no single figure. Of its 13 neighbourhoods with a rank:
  • Decile 3: 1 neighbourhood
  • Decile 5: 2 neighbourhoods
  • Decile 6: 2 neighbourhoods
  • Decile 7: 2 neighbourhoods
  • Decile 8: 2 neighbourhoods
  • Decile 9: 2 neighbourhoods
  • Decile 10 (England’s least deprived 10%): 2 neighbourhoods

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

Neighbourhoods in SO23

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Winchester 002B1,46955.8 per 1,000584.0%
Winchester 002C1,79232.5 per 1,0001075.0%
Winchester 002D1,66428.7 per 1,0001068.0%
Winchester 003D2,03920.2 per 1,000988.9%
Winchester 006A1,221539.9 per 1,000560.9%
Winchester 006B1,69280.9 per 1,000777.6%
Winchester 006C1,550126.5 per 1,000382.2%
Winchester 006D1,60952.0 per 1,000790.2%
Winchester 006E1,57144.5 per 1,000688.0%
Winchester 007A1,821210.3 per 1,000652.4%
Winchester 007B1,81447.3 per 1,000866.2%
Winchester 007D1,773226.8 per 1,000849.0%
Winchester 007E1,84071.4 per 1,000976.4%

Your MP

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 SO233

Postcode sectors in SO236

Council1

Towns in SO231

Postcode districts next to SO232

Nearest rail stations2

More in the SO postcode area2

SO23 in brief

SO23 is a postcode district covering Winchester, Winnall and The Close, in Winchester.

About 24,370 people lived in SO23 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £515,000 in 2025 across 335 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 106.6 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in SO23 was £515,000 in 2025.

SO23 had 23,001 usual residents at the census.

About 3% of people in SO23 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In SO23, 70.7% of homes and businesses could get gigabit-capable broadband in January 2026.