DL4 postcode area guide — County Durham
House prices, crime, broadband speeds, mobile signal, schools and demographics for the DL4 postcode district in County Durham — every official dataset on one page.
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Where is DL4?
Broadband & internet speeds in DL4
Strong coverage
Superfast (30Mb+)
95.6%
Ultrafast (300Mb+)
65.5%
Gigabit-capable
65.5%
Below USO (10Mb)
0%
Broadband availability in the DL4 postcode district (County Durham) is Strong — superfast is near-universal and gigabit is rolling out. Across the 301 postcodes Ofcom measures in DL4, superfast broadband (30 Mbit/s or faster) reaches 95.6% of premises and gigabit-capable lines are available to 65.5%.
Around 0% of premises in DL4 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in DL4
| Postcode | Superfast | Gigabit |
|---|---|---|
| DL4 1AA | 100% | 100% |
| DL4 1AD | 100% | 0% |
| DL4 1AF | 100% | 0% |
| DL4 1AG | 100% | 0% |
| DL4 1AH | 100% | 65% |
| DL4 1AJ | 100% | 0% |
| DL4 1AL | 100% | 0% |
| DL4 1AN | 100% | 88.9% |
| DL4 1AP | 100% | 0% |
| DL4 1AQ | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around County Durham
Ofcom's coverage model for the wider County Durham district (269,279 premises):
4G indoors — all networks
86.8%
4G outdoors — all networks
99.2%
5G outdoors — all networks
39.9%
Voice indoors — all networks
88.9%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in DL4
Police recorded 186 incidents within about a mile of the centre of DL4 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 66 | 35.5% |
| Anti-social behaviour | 36 | 19.4% |
| Criminal damage & arson | 22 | 11.8% |
| Other theft | 15 | 8.1% |
| Public order | 14 | 7.5% |
| Burglary | 13 | 7.0% |
| Other crime | 7 | 3.8% |
| Vehicle crime | 5 | 2.7% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
House prices in DL4
Based on 193 sales registered with HM Land Registry in the last 12 months, the median sold price in DL4 is £65,000, up 5.7% on the previous year (£61,500).
Detached
£231,000
15 sales
Semi-detached
£85,000
35 sales
Terraced
£55,000
133 sales
Latest recorded sales in DL4
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 21 May 2026 | £34,554 | Terraced | Thomas Street | DL4 2JX |
| 19 May 2026 | £65,000 | Terraced | Alexandra Street | DL4 2EY |
| 15 May 2026 | £76,000 | Semi-detached | Jubilee Road | DL4 2AL |
| 8 May 2026 | £118,500 | Semi-detached | Primrose Drive | DL4 2JQ |
| 7 May 2026 | £111,999 | Semi-detached | Rosedale Crescent | DL4 2AW |
| 5 May 2026 | £41,000 | Terraced | Soho Street | DL4 1PG |
| 24 Apr 2026 | £146,500 | Terraced | Sterling Way | DL4 2GT |
| 22 Apr 2026 | £92,000 | Semi-detached | Sunnydale | DL4 2ER |
| 17 Apr 2026 | £238,000 | Terraced | Old Eldon | DL4 2QT |
| 17 Apr 2026 | £72,500 | Terraced | Queensway | DL4 2BQ |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? County Durham demographics
Census 2021 figures for the wider County Durham district (522,068 residents, 234,764 households):
| Age profile | |
|---|---|
| Under 15 | 16.9% |
| 15–29 | 22.7% |
| 30–44 | 17.5% |
| 45–64 | 21.6% |
| 65+ | 21.3% |
| Housing tenure | |
|---|---|
| Owner-occupied | 62.5% |
| Private rented | 17.2% |
| Social rented | 10.6% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around DL4
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Timothy Hackworth Primary School | Primary | 2–11 | 329 | DL4 1HN |
| St John's Church of England Aided Primary School, Shildon | Primary | 3–11 | 239 | DL4 2EQ |
| Thornhill Primary School | Primary | 4–11 | 205 | DL4 1ES |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in DL4
75 rated food businesses operate in DL4. 46 hold the top rating of 5, 13 are rated 4, and 3 are rated 2 or below.
Among the 5-rated: B and M, Batch Coffee Roasters, Bondcare Group Care Homes, Byerley Road Pre-School Group, Cassie's Kitchen.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in DL4
From a sample of 195 Energy Performance Certificates across 12 DL4 postcodes, the most common rating is band D (average band C). 48% of sampled homes are rated C or better.
Band A
1%
Band B
18%
Band C
29%
Band D
37%
Band E
12%
Band F
3%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for County Durham
Landlines around DL4 typically use:
Had a call from an unknown number? Use our free UK phone number checker to see who called.
What's it like living in DL4?
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Moving to DL4? Sort your connectivity first
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Postcodes in DL4
Neighbouring districts
All Darlington (DL) postcode districts ›
Frequently asked questions
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Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.