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SN3

Postcode district

Postcode district covering Swindon and Stratton St Margaret, in Swindon.

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 SN3 postcode. How census figures are added up

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Gigabit coverage by postcode district

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In SN3, 97.6% of homes and businesses could get gigabit-capable broadband in January 2026.

Median sale price
£290,000
Joint 1,065th cheapest of 2,235
Worked out by Open Index
Population
54,152
143rd most populated of 2,756
ONS Census 2021 · 2021
Gigabit broadband coverage
97.6%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
3.7%
UK 3.9%
ONS via Nomis · Aug 2026

How SN3 compares

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

SN3Middle
Median sale price18 postcode districts, SN · 2025
Median sale price: every postcode district in SN18 areas from £249,000 to £445,000. The middle area is £322,500. SN3 is £290,000.
£290,000joint 4th cheapest
Population19 postcode districts, SN · 2021
Population: every postcode district in SN19 areas from 595 to 54,152. The middle area is 27,872. SN3 is 54,152.
54,152most populated
Gigabit broadband coverage19 postcode districts, SN · Jan 2026
Gigabit broadband coverage: every postcode district in SN19 areas from 33.6% to 99.7%. The middle area is 81.2%. SN3 is 97.6%.
97.6%3rd highest
Claimant rate18 postcode districts, SN · Aug 2026
Claimant rate: every postcode district in SN18 areas from 1.8% to 4.4%. The middle area is 2.4%. SN3 is 3.7%.
3.7%3rd highest

Is SN3 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SN3 at a rate of 75.1 per 1,000 people.

That compares with 66.2 per 1,000 people across the SN postcode area.

In August 2026 alone, 369 cases of crime and anti-social behaviour were recorded in SN3.

In the 12 months to August 2026, the most common types were violence and sexual offences (1,803), anti-social behaviour (784) and other crime (727).

A year earlier, the recorded crime rate in SN3 was 78.2 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 SN3, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so SN3 has no single figure. Of its 33 neighbourhoods with a rank:
  • Decile 1 (England’s most deprived 10%): 4 neighbourhoods
  • Decile 2: 4 neighbourhoods
  • Decile 3: 4 neighbourhoods
  • Decile 6: 1 neighbourhood
  • Decile 7: 6 neighbourhoods
  • Decile 8: 6 neighbourhoods
  • Decile 9: 7 neighbourhoods
  • Decile 10 (England’s least deprived 10%): 1 neighbourhood

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

Neighbourhoods in SN3

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Swindon 008A1,930145.2 per 1,000781.5%
Swindon 009A1,638109.0 per 1,000898.4%
Swindon 009B1,85465.1 per 1,000799.9%
Swindon 009C1,65450.5 per 1,000999.9%
Swindon 009D2,22453.4 per 1,000796.5%
Swindon 009E1,51636.9 per 1,0008100.0%
Swindon 009F1,38547.4 per 1,000699.7%
Swindon 013A1,76156.1 per 1,000893.1%
Swindon 013B1,23034.6 per 1,0009100.0%
Swindon 013C1,35518.3 per 1,000998.8%
Swindon 013D1,41537.6 per 1,0009100.0%
Swindon 013E1,38648.5 per 1,0009100.0%
Swindon 013F1,38338.1 per 1,0007100.0%
Swindon 016A1,945102.8 per 1,000197.2%
Swindon 016B1,385114.5 per 1,0002100.0%
Swindon 016C2,293188.3 per 1,000196.0%
Swindon 016D1,388117.1 per 1,0001100.0%
Swindon 017C1,62885.9 per 1,000799.1%
Swindon 017D1,59374.4 per 1,0008100.0%
Swindon 020A1,80059.7 per 1,0002100.0%
Swindon 020B1,66255.7 per 1,0003100.0%
Swindon 020C1,858136.5 per 1,0002100.0%
Swindon 020D1,814119.9 per 1,000299.4%
Swindon 020E1,415148.4 per 1,0001100.0%
Swindon 023A1,48322.0 per 1,0009100.0%
Swindon 023B1,46274.9 per 1,0003100.0%
Swindon 023C1,43328.2 per 1,0008100.0%
Swindon 023D1,26425.6 per 1,0007100.0%
Swindon 023E1,417132.6 per 1,000399.7%
Swindon 023F1,40257.4 per 1,0003100.0%
Swindon 024A1,48726.1 per 1,0001095.3%
Swindon 024C2,08958.1 per 1,000982.2%
Swindon 025G2,21843.1 per 1,000897.9%

MPs for SN3

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 SN35

Postcode sectors in SN38

Council1

Towns in SN32

Postcode districts next to SN36

Nearest rail stations1

More in the SN postcode area2

SN3 in brief

SN3 is a postcode district covering Swindon and Stratton St Margaret, in Swindon.

About 56,822 people lived in SN3 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £290,000 in 2025 across 891 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 75.1 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in SN3 was £290,000 in 2025.

SN3 had 54,152 usual residents at the census.

In SN3, 97.6% of homes and businesses could get gigabit-capable broadband in January 2026.

In SN3, 3.7% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.