DL4
Postcode districtPostcode district covering Shildon and Sunnydale, in County Durham.
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 DL4 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 95% of people in DL4 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How DL4 compares
Each dot is a postcode district. The black line marks the middle one.
Is DL4 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in DL4 at a rate of 170.1 per 1,000 people.
That compares with 111.8 per 1,000 people across the DL postcode area.
In August 2026 alone, 127 cases of crime and anti-social behaviour were recorded in DL4.
In the 12 months to August 2026, the most common types were violence and sexual offences (596), anti-social behaviour (340) and other crime (267).
A year earlier, the recorded crime rate in DL4 was 170.3 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 DL4, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so DL4 has no single figure. Of its 6 neighbourhoods with a rank:
- Decile 1 (England’s most deprived 10%): 4 neighbourhoods
- Decile 2: 1 neighbourhood
- Decile 3: 1 neighbourhood
English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.
Neighbourhoods in DL4
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| County Durham 059A | 1,441 | 130.3 per 1,000 | 2 | 96.0% |
| County Durham 059B | 1,816 | 231.1 per 1,000 | 1 | 88.2% |
| County Durham 059C | 1,720 | 210.5 per 1,000 | 1 | 97.6% |
| County Durham 059D | 1,514 | 192.5 per 1,000 | 1 | 96.3% |
| County Durham 059E | 2,162 | 89.7 per 1,000 | 3 | 82.2% |
| County Durham 059F | 1,769 | 188.2 per 1,000 | 1 | 99.3% |
MPs for DL4
- Dr Sam RushworthLabourMP for Bishop Auckland99% of DL4’s postcodes
- Lola McEvoyLabourMP for Darlington0.7% of DL4’s postcodes
- Alan StricklandLabourMP for Newton Aycliffe and Spennymoor0.3% of DL4’s postcodes
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 DL41
Postcode sectors in DL42
Council1
Towns in DL41
Postcode districts next to DL42
Nearest rail stations3
More in the DL postcode area2
DL4 in brief
DL4 is a postcode district covering Shildon and Sunnydale, in County Durham.
About 10,356 people lived in DL4 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £79,000 in 2025 across 124 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 170.1 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in DL4 was £79,000 in 2025.
DL4 had 10,053 usual residents at the census.
About 95% of people in DL4 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In DL4, 92.7% of homes and businesses could get gigabit-capable broadband in January 2026.