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DL12

Postcode district

Postcode district covering Barnard Castle, 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 DL12 postcode. How census figures are added up

Open in map

Gigabit coverage by postcode district

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In DL12, 69.5% of homes and businesses could get gigabit-capable broadband in January 2026.

Median sale price
£251,250
778th cheapest of 2,235
Worked out by Open Index
Population
12,418
867th least populated of 2,756
ONS Census 2021 · 2021
Gigabit broadband coverage
69.5%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
1.8%
UK 3.9%
ONS via Nomis · Aug 2026

How DL12 compares

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

DL12Middle
Median sale price17 postcode districts, DL · 2025
Median sale price: every postcode district in DL17 areas from £79,000 to £373,000. The middle area is £175,000. DL12 is £251,250.
£251,2503rd most expensive
Population17 postcode districts, DL · 2021
Population: every postcode district in DL17 areas from 4,710 to 48,342. The middle area is 17,808. DL12 is 12,418.
12,4183rd least populated
Gigabit broadband coverage17 postcode districts, DL · Jan 2026
Gigabit broadband coverage: every postcode district in DL17 areas from 26.7% to 96.9%. The middle area is 81.0%. DL12 is 69.5%.
69.5%4th lowest
Claimant rate17 postcode districts, DL · Aug 2026
Claimant rate: every postcode district in DL17 areas from 1.1% to 4.6%. The middle area is 2.6%. DL12 is 1.8%.
1.8%6th lowest

Is DL12 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in DL12 at a rate of 71.2 per 1,000 people.

That compares with 111.8 per 1,000 people across DL.

In August 2026 alone, 88 cases of crime and anti-social behaviour were recorded in DL12.

In the 12 months to August 2026, the most common types were violence and sexual offences (350), other crime (209) and anti-social behaviour (100).

A year earlier, the recorded crime rate in DL12 was 66.8 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 DL12, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so DL12 has no single figure. Of its 7 neighbourhoods with a rank:
  • Decile 3: 1 neighbourhood
  • Decile 4: 1 neighbourhood
  • Decile 5: 2 neighbourhoods
  • Decile 7: 2 neighbourhoods
  • Decile 9: 1 neighbourhood

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

Neighbourhoods in DL12

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
County Durham 067A2,19144.1 per 1,000485.4%
County Durham 067B1,46055.4 per 1,000592.0%
County Durham 067C1,14628.3 per 1,000934.8%
County Durham 067D1,78557.0 per 1,000786.1%
County Durham 067E1,657106.4 per 1,000331.1%
County Durham 067F2,586117.1 per 1,000760.8%
County Durham 067G1,32052.7 per 1,000585.2%

MPs for DL12

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 DL121

Postcode sectors in DL124

Council1

Postcode districts next to DL126

More in the DL postcode area2

DL12 in brief

DL12 is a postcode district covering Barnard Castle, in County Durham.

About 12,690 people lived in DL12 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £251,250 in 2025 across 204 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 71.2 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in DL12 was £251,250 in 2025.

DL12 had 12,418 usual residents at the census.

In DL12, 69.5% of homes and businesses could get gigabit-capable broadband in January 2026.

In DL12, 1.8% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.