DL3 postcode area guide — Darlington

Where is DL3?

Broadband & internet speeds in DL3

Excellent coverage

Broadband availability in the DL3 postcode district (Darlington) is Excellent — gigabit-capable full fibre is widely available. Across the 1,141 postcodes Ofcom measures in DL3, superfast broadband (30 Mbit/s or faster) reaches 96.8% of premises and gigabit-capable lines are available to 92.6%.

Around 0% of premises in DL3 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 DL3

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around Darlington

Ofcom's coverage model for the wider Darlington district (56,948 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in DL3

Police recorded 487 incidents within about a mile of the centre of DL3 in May 2026 (latest published street-level data). The breakdown:

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 DL3

Based on 610 sales registered with HM Land Registry in the last 12 months, the median sold price in DL3 is £140,000, down 3.4% on the previous year (£145,000).

Latest recorded sales in DL3

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? Darlington demographics

Census 2021 figures for the wider Darlington district (107,801 residents, 48,915 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around DL3

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 DL3

272 rated food businesses operate in DL3. 224 hold the top rating of 5, 15 are rated 4, and 5 are rated 2 or below.

Among the 5-rated: 4Motion Skatepark, A J Convenience Store Ltd, Abu's, Acorn Care (UK) Ltd, Al Forno.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in DL3

From a sample of 241 Energy Performance Certificates across 11 DL3 postcodes, the most common rating is band D (average band D). 31% of sampled homes are rated C or better.

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 Darlington

Landlines around DL3 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 DL3?

Postcodes in DL3

Neighbouring districts

All Darlington (DL) postcode districts ›

Frequently asked questions

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.