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DN40

Postcode district

Postcode district covering Immingham and South Killingholme, in North East Lincolnshire and North Lincolnshire.

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 DN40 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 0% of people in DN40 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£155,000
Joint 134th cheapest of 2,235
Worked out by Open Index
Population
12,477
873rd least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
0%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
95.3%
UK 87.8%
Ofcom · Jan 2026

How DN40 compares

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

DN40Middle
Median sale price32 postcode districts, DN · 2025
Median sale price: every postcode district in DN32 areas from £80,000 to £295,000. The middle area is £181,750. DN40 is £155,000.
£155,0007th cheapest
Population32 postcode districts, DN · 2021
Population: every postcode district in DN32 areas from 2,695 to 54,482. The middle area is 22,935. DN40 is 12,477.
12,4778th least populated
People in radon Affected Area squares32 postcode districts, DN · 2022
People in radon Affected Area squares: every postcode district in DN32 areas from 0.0% to 100.0%. The middle area is 4.0%. DN40 is 0.0%.
0%joint fewest people in radon Affected Areas
Gigabit broadband coverage32 postcode districts, DN · Jan 2026
Gigabit broadband coverage: every postcode district in DN32 areas from 15.2% to 99.7%. The middle area is 95.1%. DN40 is 95.3%.
95.3%joint 15th highest

Is DN40 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in DN40 at a rate of 93.0 per 1,000 people.

That compares with 116.1 per 1,000 people across the DN postcode area.

In August 2026 alone, 101 cases of crime and anti-social behaviour were recorded in DN40.

In the 12 months to August 2026, the most common types were violence and sexual offences (474), other crime (238) and anti-social behaviour (153).

A year earlier, the recorded crime rate in DN40 was 90.2 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 DN40, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so DN40 has no single figure. Of its 8 neighbourhoods with a rank:
  • Decile 1 (England’s most deprived 10%): 2 neighbourhoods
  • Decile 3: 1 neighbourhood
  • Decile 4: 1 neighbourhood
  • Decile 6: 2 neighbourhoods
  • Decile 7: 1 neighbourhood
  • Decile 8: 1 neighbourhood

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

Neighbourhoods in DN40

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
North East Lincolnshire 001A1,521148.6 per 1,000184.9%
North East Lincolnshire 001B1,77535.2 per 1,000894.2%
North East Lincolnshire 001C1,372102.5 per 1,000696.9%
North East Lincolnshire 001D1,394184.7 per 1,000194.9%
North East Lincolnshire 001E1,34855.9 per 1,000799.7%
North East Lincolnshire 001F1,56564.0 per 1,000499.7%
North East Lincolnshire 001G1,38580.8 per 1,000697.8%
North Lincolnshire 004C1,83799.5 per 1,000395.4%

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 DN401

Postcode sectors in DN404

Councils DN40 covers2

Towns in DN401

Postcode districts next to DN403

Nearest rail stations3

More in the DN postcode area2

DN40 in brief

DN40 is a postcode district covering Immingham and South Killingholme, in North East Lincolnshire and North Lincolnshire.

About 12,687 people lived in DN40 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £155,000 in 2025 across 183 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 93.0 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in DN40 was £155,000 in 2025.

DN40 had 12,477 usual residents at the census.

About 0% of people in DN40 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In DN40, 95.3% of homes and businesses could get gigabit-capable broadband in January 2026.