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S40

Postcode district

Postcode district covering Chesterfield, Brampton and Ashgate, in Chesterfield.

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 S40 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 84% of people in S40 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£220,000
Joint 517th cheapest of 2,235
Worked out by Open Index
Population
35,125
647th most populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
84%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
90.8%
UK 87.8%
Ofcom · Jan 2026

How S40 compares

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

S40Middle
Median sale price45 postcode districts, S · 2025
Median sale price: every postcode district in S45 areas from £105,500 to £437,000. The middle area is £200,000. S40 is £220,000.
£220,00016th most expensive
Population47 postcode districts, S · 2021
Population: every postcode district in S47 areas from 312 to 62,455. The middle area is 30,642. S40 is 35,125.
35,12517th most populated
People in radon Affected Area squares47 postcode districts, S · 2022
People in radon Affected Area squares: every postcode district in S47 areas from 23.0% to 100.0%. The middle area is 100.0%. S40 is 84.0%.
84%12th fewest people in radon Affected Areas
Gigabit broadband coverage47 postcode districts, S · Jan 2026
Gigabit broadband coverage: every postcode district in S47 areas from 19.6% to 99.8%. The middle area is 93.4%. S40 is 90.8%.
90.8%16th lowest

Is S40 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in S40 at a rate of 147.2 per 1,000 people.

That compares with 109.1 per 1,000 people across the S postcode area.

In August 2026 alone, 543 cases of crime and anti-social behaviour were recorded in S40.

In the 12 months to August 2026, the most common types were violence and sexual offences (2,069), other crime (917) and anti-social behaviour (886).

A year earlier, the recorded crime rate in S40 was 135.4 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 S40, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so S40 has no single figure. Of its 24 neighbourhoods with a rank:
  • Decile 1 (England’s most deprived 10%): 3 neighbourhoods
  • Decile 2: 2 neighbourhoods
  • Decile 3: 7 neighbourhoods
  • Decile 4: 1 neighbourhood
  • Decile 6: 1 neighbourhood
  • Decile 7: 1 neighbourhood
  • Decile 9: 3 neighbourhoods
  • Decile 10 (England’s least deprived 10%): 6 neighbourhoods

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

Neighbourhoods in S40

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Chesterfield 008B1,27525.3 per 1,0001090.1%
Chesterfield 008D1,33773.1 per 1,000396.2%
Chesterfield 008E1,210213.8 per 1,000138.6%
Chesterfield 008F1,193109.5 per 1,000398.4%
Chesterfield 009A1,56453.3 per 1,000693.4%
Chesterfield 009B1,41364.2 per 1,000999.4%
Chesterfield 009C1,45359.1 per 1,000397.4%
Chesterfield 009D1,79679.3 per 1,0001099.9%
Chesterfield 009E1,51364.5 per 1,000799.6%
Chesterfield 010A1,982197.6 per 1,000490.1%
Chesterfield 010B1,329123.7 per 1,000393.1%
Chesterfield 010C1,491176.2 per 1,000289.4%
Chesterfield 010F1,1901,596.9 per 1,000353.3%
Chesterfield 010G1,734227.1 per 1,000397.6%
Chesterfield 011A1,31333.0 per 1,0001099.2%
Chesterfield 011B1,38654.0 per 1,000995.3%
Chesterfield 011C1,33122.9 per 1,0001099.7%
Chesterfield 011D1,30239.5 per 1,000999.2%
Chesterfield 011E1,66548.9 per 1,0001099.2%
Chesterfield 011F1,11010.2 per 1,0001098.9%
Chesterfield 013A1,65798.0 per 1,000199.7%
Chesterfield 013B1,606111.5 per 1,000292.8%
Chesterfield 013C1,493165.0 per 1,000394.8%
Chesterfield 013D1,546248.3 per 1,000191.3%

MPs for S40

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 S405

Postcode sectors in S405

Council1

Towns in S401

Postcode districts next to S402

Nearest rail stations1

More in the S postcode area2

S40 in brief

S40 is a postcode district covering Chesterfield, Brampton and Ashgate, in Chesterfield.

About 35,812 people lived in S40 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £220,000 in 2025 across 554 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 147.2 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in S40 was £220,000 in 2025.

S40 had 35,125 usual residents at the census.

About 84% of people in S40 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In S40, 90.8% of homes and businesses could get gigabit-capable broadband in January 2026.