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SN12

Postcode district

Postcode district covering Melksham and Bowerhill, in Wiltshire.

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 SN12 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 11% of people in SN12 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£300,000
Joint 1,069th most expensive of 2,235
Worked out by Open Index
Population
28,636
992nd most populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
11%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
78.9%
UK 87.8%
Ofcom · Jan 2026

How SN12 compares

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

SN12Middle
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. SN12 is £300,000.
£300,000joint 6th cheapest
Population19 postcode districts, SN · 2021
Population: every postcode district in SN19 areas from 595 to 54,152. The middle area is 27,872. SN12 is 28,636.
28,6369th most populated
People in radon Affected Area squares19 postcode districts, SN · 2022
People in radon Affected Area squares: every postcode district in SN19 areas from 0.0% to 90.0%. The middle area is 24.0%. SN12 is 11.0%.
11%6th fewest people in radon Affected Areas
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%. SN12 is 78.9%.
78.9%8th lowest

Is SN12 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SN12 at a rate of 62.5 per 1,000 people.

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

In August 2026 alone, 182 cases of crime and anti-social behaviour were recorded in SN12.

In the 12 months to August 2026, the most common types were violence and sexual offences (756), anti-social behaviour (429) and other crime (266).

A year earlier, the recorded crime rate in SN12 was 59.0 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 SN12, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so SN12 has no single figure. Of its 19 neighbourhoods with a rank:
  • Decile 2: 2 neighbourhoods
  • Decile 5: 3 neighbourhoods
  • Decile 6: 2 neighbourhoods
  • Decile 7: 6 neighbourhoods
  • Decile 8: 4 neighbourhoods
  • Decile 9: 1 neighbourhood
  • 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 SN12

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Wiltshire 020A2,22760.8 per 1,000790.5%
Wiltshire 020B1,32879.1 per 1,000298.4%
Wiltshire 020C1,55351.8 per 1,000695.8%
Wiltshire 020D1,40843.9 per 1,000794.7%
Wiltshire 020E1,29817.6 per 1,000897.4%
Wiltshire 021A1,29320.3 per 1,00080.0%
Wiltshire 021B1,55824.8 per 1,000716.2%
Wiltshire 021C1,22820.0 per 1,00080.4%
Wiltshire 021D1,83799.6 per 1,000563.6%
Wiltshire 021F1,90125.2 per 1,000997.0%
Wiltshire 021G1,46629.4 per 1,000868.1%
Wiltshire 021H1,46344.6 per 1,000795.1%
Wiltshire 021I1,70147.2 per 1,000792.8%
Wiltshire 022A1,913194.0 per 1,000279.3%
Wiltshire 022B1,65657.3 per 1,000597.1%
Wiltshire 022C1,426108.8 per 1,000799.4%
Wiltshire 022D1,384133.5 per 1,000590.5%
Wiltshire 022E1,22528.9 per 1,0001099.8%
Wiltshire 028E1,50931.9 per 1,000685.0%

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 SN123

Postcode sectors in SN124

Council1

Towns in SN121

Postcode districts next to SN125

Nearest rail stations1

More in the SN postcode area2

SN12 in brief

SN12 is a postcode district covering Melksham and Bowerhill, in Wiltshire.

About 30,298 people lived in SN12 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £300,000 in 2025 across 515 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 62.5 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in SN12 was £300,000 in 2025.

SN12 had 28,636 usual residents at the census.

About 11% of people in SN12 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In SN12, 78.9% of homes and businesses could get gigabit-capable broadband in January 2026.